diff --git a/mobile/README.md b/mobile/README.md
index a8d7094..9c6362f 100644
--- a/mobile/README.md
+++ b/mobile/README.md
@@ -13,8 +13,10 @@ architecture-decision thread in this session's handoff.
 
 **Status:** Phase 1 — real Feed/Explore/Notifications/Pets tabs against the
 live backend, not just a connectivity scaffold anymore. Post creation,
-comments, stories, pet profile detail, video playback, search, health, and
-message sending are still not built — see "What's not built yet" below.
+comments, repost, pet profile detail (view/follow/edit/followers-following),
+stories (tray/creation/viewer), video playback, and search are done and
+verified end-to-end against the live backend. Health tracking, milestones,
+and message sending are still not built — see "What's not built yet" below.
 Android is the priority platform; iOS builds need a Mac + Apple Developer
 account and come later (same codebase, no separate source tree — see
 "Android-first, then iOS" below).
@@ -153,21 +155,25 @@ mobile/
     (auth)/
       sign-in.tsx           # email/password + Clerk Device Trust email-code step
     (app)/
-      _layout.tsx           # Stack hosting the (tabs) group + the messages screen
+      _layout.tsx           # Stack hosting the (tabs) group + the messages/search/story/comment screens
       (tabs)/
-        _layout.tsx         # bottom Tabs: Feed/Explore/Notifications/Pets + header Messages button
-        index.tsx           # Feed
+        _layout.tsx         # bottom Tabs: Feed/Explore/Notifications/Pets + header Search/Messages buttons
+        index.tsx           # Feed (StoryTray header + infinite post list)
         explore.tsx         # pet discovery grid
         notifications.tsx   # notifications list
         pets.tsx             # owner's pets + active-pet switcher
       messages/index.tsx    # conversations list
+      search.tsx             # pets/people/hashtags search, three tabs over one debounced query
       post-new.tsx           # create a photo post (pick/upload → posts.create)
+      story-new.tsx           # create a photo story (pick/upload → stories.create)
+      story-viewer.tsx        # full-screen story playback (tap zones, progress bars, view tracking)
       posts/[postId]/comments.tsx  # read/write/delete comments for a post
       image-viewer.tsx        # full-screen tapped-image lightbox
   src/
     api/trpc.ts             # tRPC client, AppRouter type import, query client factory
     api/types.ts             # inferRouterOutputs<AppRouter> shortcuts (Pet, FeedPost, ...)
     context/ActivePetContext.tsx  # MMKV-backed active-pet state
+    hooks/useDebounce.ts      # generic debounce hook (search input)
     lib/env.ts               # typed EXPO_PUBLIC_* access
     lib/tokenCache.ts        # Clerk session persistence via expo-secure-store
     lib/storage.ts            # MMKV instance + TanStack Query sync persister
@@ -176,7 +182,8 @@ mobile/
     lib/sponsor.ts             # active-sponsor check
     lib/upload.ts              # direct PUT of a picked image to a presigned Supabase URL
     theme/tokens.ts            # design tokens mirroring the web app's DESIGN.md
-    components/                 # Button, TextField, Card, PostCard, PawButton, PetAvatar, PetIdentityBadges
+    components/                 # Button, TextField, Card, PostCard, PawButton, PetAvatar,
+                                 # PetIdentityBadges, FollowButton, StoryTray, PawRing, VideoPlayer
 ```
 
 ## Android-first, then iOS
@@ -199,14 +206,14 @@ separately. "Starting with Android" means:
 
 Phase 1 (Feed/Explore/Notifications/Pets tabs, reactions, active-pet
 switching, persisted cache for fast reopen) plus a full pet profile
-(view/follow/edit/followers-following), post creation/upload, comments, and
-repost ("Paw-Back") creation are done and verified end-to-end against the
-live backend on a real Android emulator. Still missing, roughly in the
-order they'd unblock the most:
+(view/follow/edit/followers-following), post creation/upload, comments,
+repost ("Paw-Back") creation, stories (tray/creation/viewer via
+`expo-video`-adjacent `expo-image`, plus `PawRing` seen/unseen indicator),
+video playback (`expo-video` against Mux HLS, polling while `PROCESSING`),
+and search (pets/people/hashtags, `search.pets`/`byOwner`/`byHashtag`) are
+done and verified end-to-end against the live backend on a real Android
+emulator. Still missing, roughly in the order they'd unblock the most:
 
-- Stories (story ring, viewer, creation)
-- Video playback (currently a static placeholder for `type === "VIDEO"` posts)
-- Search (`search.pets`/`byHashtag`/`byOwner`) — separate from the Explore tab
 - Health tracking, milestones
 - Sending messages (conversations list works; no chat detail/compose screen)
 - Push notifications
diff --git a/mobile/app.json b/mobile/app.json
index 8edc4cf..96cfa86 100644
--- a/mobile/app.json
+++ b/mobile/app.json
@@ -38,7 +38,8 @@
           "photosPermission": "Erlaube PawFeed den Zugriff auf deine Fotos, um sie in einem Beitrag zu teilen.",
           "cameraPermission": "Erlaube PawFeed den Zugriff auf die Kamera, um ein Foto für deinen Beitrag aufzunehmen."
         }
-      ]
+      ],
+      "expo-video"
     ]
   }
 }
diff --git a/mobile/app/(app)/(tabs)/_layout.tsx b/mobile/app/(app)/(tabs)/_layout.tsx
index a6410a6..fa7461d 100644
--- a/mobile/app/(app)/(tabs)/_layout.tsx
+++ b/mobile/app/(app)/(tabs)/_layout.tsx
@@ -1,7 +1,7 @@
 import { View, Text, Pressable, StyleSheet } from "react-native";
 import { Tabs, useRouter } from "expo-router";
 import { useQuery } from "@tanstack/react-query";
-import { Home, Compass, Bell, Heart, MessageCircle, PawPrint, Plus } from "lucide-react-native";
+import { Home, Compass, Bell, Heart, MessageCircle, PawPrint, Plus, Search } from "lucide-react-native";
 import { useTRPC } from "../../../src/api/trpc";
 import { useActivePet } from "../../../src/context/ActivePetContext";
 import { colors, fontFamily } from "../../../src/theme/tokens";
@@ -10,8 +10,10 @@ import { colors, fontFamily } from "../../../src/theme/tokens";
  * Bottom tab bar mirroring the product's real mobile IA (web's
  * src/components/layout/MobileNav.tsx): Feed, Explore, Notifications, Pets.
  * Messages is a header button, not a tab, matching web (there it's a fixed
- * floating corner button). The center "+" post button from web has no
- * equivalent here yet — post creation is a later phase.
+ * floating corner button). "+" (new post, Feed tab) and the search icon
+ * (Explore tab) have no web mobile-nav equivalent at all — web only exposes
+ * search via the desktop Sidebar — so these are this app's own entry points
+ * for actions that need one.
  */
 export default function TabsLayout() {
   return (
@@ -43,7 +45,16 @@ export default function TabsLayout() {
       />
       <Tabs.Screen
         name="explore"
-        options={{ title: "Explore", tabBarIcon: ({ color, size }) => <Compass color={color} size={size} /> }}
+        options={{
+          title: "Explore",
+          headerRight: () => (
+            <View style={styles.headerButtons}>
+              <SearchHeaderButton />
+              <MessagesHeaderButton />
+            </View>
+          ),
+          tabBarIcon: ({ color, size }) => <Compass color={color} size={size} />,
+        }}
       />
       <Tabs.Screen
         name="notifications"
@@ -76,6 +87,15 @@ function NewPostHeaderButton() {
   );
 }
 
+function SearchHeaderButton() {
+  const router = useRouter();
+  return (
+    <Pressable onPress={() => router.push("/search")} hitSlop={12}>
+      <Search color={colors.ink} size={22} />
+    </Pressable>
+  );
+}
+
 function MessagesHeaderButton() {
   const router = useRouter();
   return (
diff --git a/mobile/app/(app)/(tabs)/index.tsx b/mobile/app/(app)/(tabs)/index.tsx
index 127d308..46db47e 100644
--- a/mobile/app/(app)/(tabs)/index.tsx
+++ b/mobile/app/(app)/(tabs)/index.tsx
@@ -3,12 +3,14 @@ import { useInfiniteQuery } from "@tanstack/react-query";
 import { useTRPC } from "../../../src/api/trpc";
 import { useActivePet } from "../../../src/context/ActivePetContext";
 import { PostCard } from "../../../src/components/PostCard";
+import { StoryTray } from "../../../src/components/StoryTray";
 import { colors, typography } from "../../../src/theme/tokens";
 import type { FeedPost } from "../../../src/api/types";
 
 /**
- * Port of web's src/components/feed/FeedList.tsx, scoped to Phase 1: real
- * infinite-scroll feed data, no ads/story tray/feed-mode toggle yet.
+ * Port of web's src/components/feed/FeedList.tsx: infinite-scroll feed data
+ * with the StoryTray as a list header. No ads or feed-mode ("algo" vs
+ * "chrono") toggle yet.
  */
 export default function FeedScreen() {
   const trpc = useTRPC();
@@ -47,6 +49,7 @@ export default function FeedScreen() {
       keyExtractor={(post) => post.id}
       contentContainerStyle={styles.list}
       renderItem={({ item }) => <PostCard post={item} actingPetId={activePetId!} />}
+      ListHeaderComponent={<StoryTray />}
       ItemSeparatorComponent={() => (
         <View style={styles.separatorWrap}>
           <View style={styles.separatorLine} />
diff --git a/mobile/app/(app)/_layout.tsx b/mobile/app/(app)/_layout.tsx
index aca14e7..62d892a 100644
--- a/mobile/app/(app)/_layout.tsx
+++ b/mobile/app/(app)/_layout.tsx
@@ -28,6 +28,7 @@ export default function AppLayout() {
       <Stack.Screen name="pets/[petId]/followers" options={{ ...headerOptions, title: "Follower" }} />
       <Stack.Screen name="pets/[petId]/following" options={{ ...headerOptions, title: "Folgt" }} />
       <Stack.Screen name="posts/[postId]/comments" options={{ ...headerOptions, title: "Kommentare" }} />
+      <Stack.Screen name="search" options={{ ...headerOptions, title: "Suche" }} />
       <Stack.Screen
         name="post-new"
         options={{
@@ -37,10 +38,23 @@ export default function AppLayout() {
           headerLeft: () => <CloseModalButton />,
         }}
       />
+      <Stack.Screen
+        name="story-new"
+        options={{
+          ...headerOptions,
+          title: "Neue Story",
+          presentation: "modal",
+          headerLeft: () => <CloseModalButton />,
+        }}
+      />
       <Stack.Screen
         name="image-viewer"
         options={{ headerShown: false, presentation: "fullScreenModal", animation: "fade" }}
       />
+      <Stack.Screen
+        name="story-viewer"
+        options={{ headerShown: false, presentation: "fullScreenModal", animation: "fade" }}
+      />
     </Stack>
   );
 }
diff --git a/mobile/app/(app)/pets/[petId]/index.tsx b/mobile/app/(app)/pets/[petId]/index.tsx
index 6d5ded2..f7e9316 100644
--- a/mobile/app/(app)/pets/[petId]/index.tsx
+++ b/mobile/app/(app)/pets/[petId]/index.tsx
@@ -1,13 +1,13 @@
-import { useState } from "react";
 import { View, Text, FlatList, Pressable, ActivityIndicator, StyleSheet } from "react-native";
 import { useLocalSearchParams, useRouter } from "expo-router";
-import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import { useQuery } from "@tanstack/react-query";
 import { useTRPC } from "../../../../src/api/trpc";
 import { useActivePet } from "../../../../src/context/ActivePetContext";
 import { PetAvatar } from "../../../../src/components/PetAvatar";
 import { PetIdentityBadges } from "../../../../src/components/PetIdentityBadges";
 import { PostCard } from "../../../../src/components/PostCard";
 import { Button } from "../../../../src/components/Button";
+import { FollowButton } from "../../../../src/components/FollowButton";
 import { formatPetName } from "../../../../src/lib/format";
 import { colors, typography } from "../../../../src/theme/tokens";
 
@@ -23,7 +23,6 @@ export default function PetProfileScreen() {
   const { petId } = useLocalSearchParams<{ petId: string }>();
   const router = useRouter();
   const trpc = useTRPC();
-  const queryClient = useQueryClient();
   const { activePetId } = useActivePet();
 
   const { data: pet, isLoading, error } = useQuery(trpc.pets.getProfile.queryOptions({ petId }));
@@ -33,27 +32,6 @@ export default function PetProfileScreen() {
 
   const isOwnPet = activePetId === petId;
 
-  const { data: isFollowing } = useQuery({
-    ...trpc.follows.isFollowing.queryOptions({ followerPetId: activePetId ?? "", followeePetId: petId }),
-    enabled: !isOwnPet && !!activePetId,
-  });
-
-  const [followPending, setFollowPending] = useState(false);
-  const followMutation = useMutation(
-    trpc.follows.create.mutationOptions({
-      onMutate: () => setFollowPending(true),
-      onSuccess: () => queryClient.invalidateQueries(trpc.follows.pathFilter()),
-      onSettled: () => setFollowPending(false),
-    })
-  );
-  const unfollowMutation = useMutation(
-    trpc.follows.delete.mutationOptions({
-      onMutate: () => setFollowPending(true),
-      onSuccess: () => queryClient.invalidateQueries(trpc.follows.pathFilter()),
-      onSettled: () => setFollowPending(false),
-    })
-  );
-
   if (isLoading) {
     return (
       <View style={styles.center}>
@@ -106,17 +84,7 @@ export default function PetProfileScreen() {
           {isOwnPet ? (
             <Button title="Bearbeiten" variant="outline" onPress={() => router.push(`/pets/${petId}/edit`)} />
           ) : (
-            <Button
-              title={isFollowing ? "Entfolgen" : "Folgen"}
-              variant={isFollowing ? "outline" : "primary"}
-              disabled={followPending || !activePetId}
-              onPress={() => {
-                if (!activePetId) return;
-                const params = { followerPetId: activePetId, followeePetId: petId };
-                if (isFollowing) unfollowMutation.mutate(params);
-                else followMutation.mutate(params);
-              }}
-            />
+            activePetId && <FollowButton followerPetId={activePetId} followeePetId={petId} />
           )}
 
           {pet.bio ? <Text style={styles.section}>{pet.bio}</Text> : null}
diff --git a/mobile/app/(app)/search.tsx b/mobile/app/(app)/search.tsx
new file mode 100644
index 0000000..e9cb9ad
--- /dev/null
+++ b/mobile/app/(app)/search.tsx
@@ -0,0 +1,242 @@
+import { useState } from "react";
+import { View, Text, Pressable, FlatList, ActivityIndicator, StyleSheet } from "react-native";
+import { useRouter } from "expo-router";
+import { useQuery } from "@tanstack/react-query";
+import { Search as SearchIcon, Layers2 } from "lucide-react-native";
+import { Image } from "expo-image";
+import { useTRPC } from "../../src/api/trpc";
+import { useActivePet } from "../../src/context/ActivePetContext";
+import { useDebounce } from "../../src/hooks/useDebounce";
+import { TextField } from "../../src/components/TextField";
+import { PetAvatar } from "../../src/components/PetAvatar";
+import { FollowButton } from "../../src/components/FollowButton";
+import { getMediaUrl } from "../../src/lib/media-url";
+import { colors, typography, radii } from "../../src/theme/tokens";
+
+type Tab = "pets" | "people" | "tags";
+
+type SearchPet = {
+  id: string;
+  name: string;
+  avatarKey: string | null;
+  species: { name: string };
+  breed: { name: string } | null;
+};
+
+/**
+ * Port of web's src/app/(app)/search/page.tsx: three tabs (pets/people/tags)
+ * over one debounced query. Reached via the header search icon on the
+ * Explore tab — web's own mobile nav (MobileNav.tsx) has no search entry
+ * either, so there's no existing mobile pattern to match here.
+ */
+export default function SearchScreen() {
+  const trpc = useTRPC();
+  const router = useRouter();
+  const { activePetId } = useActivePet();
+
+  const [query, setQuery] = useState("");
+  const [tab, setTab] = useState<Tab>("pets");
+  const debouncedQuery = useDebounce(query, 300);
+  const trimmed = debouncedQuery.trim();
+  const enabled = trimmed.length >= 2;
+  const normalizedTag = trimmed.replace(/^#/, "").toLowerCase();
+
+  const { data: petResults, isLoading: loadingPets } = useQuery({
+    ...trpc.search.pets.queryOptions({ query: trimmed }),
+    enabled: enabled && tab === "pets",
+  });
+  const { data: ownerResults, isLoading: loadingPeople } = useQuery({
+    ...trpc.search.byOwner.queryOptions({ query: trimmed }),
+    enabled: enabled && tab === "people",
+  });
+  const { data: tagResults, isLoading: loadingTags } = useQuery({
+    ...trpc.search.byHashtag.queryOptions({ tag: normalizedTag }),
+    enabled: normalizedTag.length >= 1 && tab === "tags",
+  });
+
+  return (
+    <View style={styles.container}>
+      <View style={styles.searchBar}>
+        <SearchIcon size={16} color={colors.quietGray} style={styles.searchIcon} />
+        <TextField
+          placeholder="Suchen…"
+          value={query}
+          onChangeText={setQuery}
+          autoFocus
+          style={styles.searchInput}
+        />
+      </View>
+
+      <View style={styles.tabs}>
+        <TabButton label="Tiere" active={tab === "pets"} onPress={() => setTab("pets")} />
+        <TabButton label="Personen" active={tab === "people"} onPress={() => setTab("people")} />
+        <TabButton label="Hashtags" active={tab === "tags"} onPress={() => setTab("tags")} />
+      </View>
+
+      {tab === "pets" &&
+        (!enabled ? (
+          <EmptyState text="Mindestens 2 Zeichen eingeben." />
+        ) : loadingPets ? (
+          <Loading />
+        ) : (
+          <FlatList
+            data={petResults?.pets ?? []}
+            keyExtractor={(pet) => pet.id}
+            contentContainerStyle={styles.list}
+            ListEmptyComponent={<EmptyState text={`Keine Tiere für "${trimmed}" gefunden.`} />}
+            renderItem={({ item }) => (
+              <PetRow pet={item} activePetId={activePetId} onPress={() => router.push(`/pets/${item.id}`)} />
+            )}
+          />
+        ))}
+
+      {tab === "people" &&
+        (!enabled ? (
+          <EmptyState text="Mindestens 2 Zeichen eingeben." />
+        ) : loadingPeople ? (
+          <Loading />
+        ) : (
+          <FlatList
+            data={ownerResults?.owners ?? []}
+            keyExtractor={(owner) => owner.id}
+            contentContainerStyle={styles.list}
+            ListEmptyComponent={<EmptyState text={`Keine Personen für "${trimmed}" gefunden.`} />}
+            renderItem={({ item: owner }) => {
+              const displayName = owner.username
+                ? `@${owner.username}`
+                : [owner.firstName, owner.lastName].filter(Boolean).join(" ") || "Unbekannt";
+              return (
+                <View style={styles.ownerBlock}>
+                  <Text style={styles.ownerName}>{displayName}</Text>
+                  {owner.pets.map((pet) => (
+                    <PetRow
+                      key={pet.id}
+                      pet={pet}
+                      activePetId={activePetId}
+                      onPress={() => router.push(`/pets/${pet.id}`)}
+                      indented
+                    />
+                  ))}
+                </View>
+              );
+            }}
+          />
+        ))}
+
+      {tab === "tags" &&
+        (normalizedTag.length < 1 ? (
+          <EmptyState text="Hashtag eingeben." />
+        ) : loadingTags ? (
+          <Loading />
+        ) : (
+          <FlatList
+            data={tagResults?.posts ?? []}
+            keyExtractor={(post) => post.id}
+            numColumns={3}
+            contentContainerStyle={styles.tagGrid}
+            ListEmptyComponent={<EmptyState text={`Keine Beiträge für #${normalizedTag}.`} />}
+            renderItem={({ item: post }) => {
+              const firstImage = post.images[0];
+              const isCarousel = post.images.length > 1;
+              return (
+                <View style={styles.tagTile}>
+                  {firstImage ? (
+                    <Image
+                      source={{ uri: getMediaUrl(firstImage.storageKey) }}
+                      style={styles.tagImage}
+                      contentFit="cover"
+                      placeholder={firstImage.blurhash ? { blurhash: firstImage.blurhash } : undefined}
+                    />
+                  ) : (
+                    <View style={[styles.tagImage, { backgroundColor: colors.hairlineGray }]} />
+                  )}
+                  {isCarousel && (
+                    <View style={styles.tagCarouselBadge}>
+                      <Layers2 size={14} color={colors.pureWhite} />
+                    </View>
+                  )}
+                </View>
+              );
+            }}
+          />
+        ))}
+    </View>
+  );
+}
+
+function TabButton({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  return (
+    <Pressable style={[styles.tabButton, active && styles.tabButtonActive]} onPress={onPress}>
+      <Text style={[styles.tabButtonText, active && styles.tabButtonTextActive]}>{label}</Text>
+    </Pressable>
+  );
+}
+
+function PetRow({
+  pet,
+  activePetId,
+  onPress,
+  indented,
+}: {
+  pet: SearchPet;
+  activePetId: string | null;
+  onPress: () => void;
+  indented?: boolean;
+}) {
+  return (
+    <View style={[styles.petRow, indented && styles.petRowIndented]}>
+      <Pressable style={styles.petRowMain} onPress={onPress}>
+        <PetAvatar name={pet.name} avatarKey={pet.avatarKey} size="sm" />
+        <View style={styles.petRowText}>
+          <Text style={styles.petName}>{pet.name}</Text>
+          <Text style={styles.petSpecies}>{pet.breed?.name ?? pet.species.name}</Text>
+        </View>
+      </Pressable>
+      {activePetId && activePetId !== pet.id && (
+        <FollowButton followerPetId={activePetId} followeePetId={pet.id} compact />
+      )}
+    </View>
+  );
+}
+
+function Loading() {
+  return (
+    <View style={styles.center}>
+      <ActivityIndicator color={colors.marigoldOrange} />
+    </View>
+  );
+}
+
+function EmptyState({ text }: { text: string }) {
+  return (
+    <View style={styles.center}>
+      <Text style={typography.body}>{text}</Text>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: { flex: 1, backgroundColor: colors.porchWhite },
+  searchBar: { paddingHorizontal: 16, paddingTop: 12, justifyContent: "center" },
+  searchIcon: { position: "absolute", left: 28, zIndex: 1 },
+  searchInput: { paddingLeft: 36 },
+  tabs: { flexDirection: "row", gap: 8, paddingHorizontal: 16, paddingVertical: 12 },
+  tabButton: { paddingHorizontal: 14, height: 36, borderRadius: radii.lg, justifyContent: "center", backgroundColor: colors.whisperGray },
+  tabButtonActive: { backgroundColor: colors.marigoldOrange },
+  tabButtonText: { ...typography.label, textTransform: "none", letterSpacing: 0, color: colors.ink },
+  tabButtonTextActive: { color: colors.pureWhite },
+  list: { padding: 16, flexGrow: 1 },
+  center: { flex: 1, alignItems: "center", justifyContent: "center", padding: 24 },
+  petRow: { flexDirection: "row", alignItems: "center", gap: 10, paddingVertical: 8 },
+  petRowIndented: { marginLeft: 16 },
+  petRowMain: { flex: 1, flexDirection: "row", alignItems: "center", gap: 10 },
+  petRowText: { flex: 1 },
+  petName: { ...typography.body, fontFamily: typography.title.fontFamily },
+  petSpecies: { ...typography.label, textTransform: "none", letterSpacing: 0 },
+  ownerBlock: { marginBottom: 16 },
+  ownerName: { ...typography.body, fontFamily: typography.title.fontFamily, marginBottom: 4 },
+  tagGrid: { padding: 2 },
+  tagTile: { flex: 1, aspectRatio: 1, padding: 2 },
+  tagImage: { width: "100%", height: "100%", borderRadius: radii.sm },
+  tagCarouselBadge: { position: "absolute", top: 6, right: 6 },
+});
diff --git a/mobile/app/(app)/story-new.tsx b/mobile/app/(app)/story-new.tsx
new file mode 100644
index 0000000..edb8d29
--- /dev/null
+++ b/mobile/app/(app)/story-new.tsx
@@ -0,0 +1,134 @@
+import { useState, useCallback } from "react";
+import { View, Text, Image as RNImage, Pressable, ActivityIndicator, StyleSheet, Alert } from "react-native";
+import { useRouter } from "expo-router";
+import * as ImagePicker from "expo-image-picker";
+import { useMutation, useQueryClient } from "@tanstack/react-query";
+import { ImagePlus, Camera } from "lucide-react-native";
+import { useTRPC } from "../../src/api/trpc";
+import { useActivePet } from "../../src/context/ActivePetContext";
+import { uploadImageToSupabase } from "../../src/lib/upload";
+import { Button } from "../../src/components/Button";
+import { colors, radii, typography } from "../../src/theme/tokens";
+
+const ALLOWED_MIME_TYPES = ["image/jpeg", "image/png", "image/webp"];
+
+/**
+ * Photo-only story creation (matches web's own "Phase 2" note in
+ * stories.ts: "Photo-only in Phase 2" — video stories are a Mux upload
+ * flow web itself only added later, not carried over here). Single image,
+ * unlike post-new.tsx's multi-image picker — a story is one photo.
+ */
+export default function NewStoryScreen() {
+  const router = useRouter();
+  const trpc = useTRPC();
+  const queryClient = useQueryClient();
+  const { activePetId } = useActivePet();
+
+  const [asset, setAsset] = useState<ImagePicker.ImagePickerAsset | null>(null);
+  const [error, setError] = useState<string | null>(null);
+
+  const getPresignedUrlMutation = useMutation(trpc.stories.getPresignedUrl.mutationOptions());
+
+  const createMutation = useMutation(
+    trpc.stories.create.mutationOptions({
+      onSuccess: async () => {
+        await queryClient.invalidateQueries(trpc.follows.pathFilter());
+        await queryClient.invalidateQueries(trpc.stories.pathFilter());
+        router.back();
+      },
+      onError: (err) => setError(err.message),
+    })
+  );
+
+  const pickFromGallery = useCallback(async () => {
+    const permission = await ImagePicker.requestMediaLibraryPermissionsAsync();
+    if (!permission.granted) {
+      Alert.alert("Zugriff auf Fotos wurde nicht erlaubt.");
+      return;
+    }
+    const result = await ImagePicker.launchImageLibraryAsync({ mediaTypes: ["images"], quality: 0.8 });
+    if (!result.canceled) setAsset(result.assets[0]);
+  }, []);
+
+  const takePhoto = useCallback(async () => {
+    const permission = await ImagePicker.requestCameraPermissionsAsync();
+    if (!permission.granted) {
+      Alert.alert("Zugriff auf die Kamera wurde nicht erlaubt.");
+      return;
+    }
+    const result = await ImagePicker.launchCameraAsync({ quality: 0.8 });
+    if (!result.canceled) setAsset(result.assets[0]);
+  }, []);
+
+  const handleSubmit = useCallback(async () => {
+    if (!asset || !activePetId) return;
+    setError(null);
+    const mimeType = ALLOWED_MIME_TYPES.includes(asset.mimeType ?? "") ? (asset.mimeType as string) : "image/jpeg";
+
+    try {
+      const { presignedUrl, key } = await getPresignedUrlMutation.mutateAsync({
+        petId: activePetId,
+        contentType: mimeType as "image/jpeg" | "image/png" | "image/webp",
+        fileSize: asset.fileSize ?? 0,
+      });
+      await uploadImageToSupabase(asset.uri, presignedUrl, mimeType);
+      createMutation.mutate({ petId: activePetId, storageKey: key, blurhash: null });
+    } catch {
+      setError("Upload fehlgeschlagen — bitte erneut versuchen.");
+    }
+  }, [asset, activePetId, getPresignedUrlMutation, createMutation]);
+
+  const isSubmitting = getPresignedUrlMutation.isPending || createMutation.isPending;
+
+  return (
+    <View style={styles.container}>
+      {asset ? (
+        <Pressable style={styles.preview} onPress={() => setAsset(null)}>
+          <RNImage source={{ uri: asset.uri }} style={styles.previewImage} />
+          <Text style={styles.previewHint}>Antippen, um ein anderes Foto zu wählen</Text>
+        </Pressable>
+      ) : (
+        <View style={styles.pickerRow}>
+          <Pressable style={styles.pickerButton} onPress={pickFromGallery}>
+            <ImagePlus color={colors.marigoldOrange} size={22} />
+            <Text style={styles.pickerText}>Galerie</Text>
+          </Pressable>
+          <Pressable style={styles.pickerButton} onPress={takePhoto}>
+            <Camera color={colors.marigoldOrange} size={22} />
+            <Text style={styles.pickerText}>Kamera</Text>
+          </Pressable>
+        </View>
+      )}
+
+      {error ? <Text style={styles.error}>{error}</Text> : null}
+
+      <Button
+        title={isSubmitting ? "Wird geteilt…" : "Story teilen"}
+        onPress={handleSubmit}
+        disabled={!asset || isSubmitting}
+      />
+      {isSubmitting && <ActivityIndicator color={colors.marigoldOrange} />}
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: { flex: 1, padding: 16, gap: 12, backgroundColor: colors.porchWhite },
+  pickerRow: { flexDirection: "row", gap: 12 },
+  pickerButton: {
+    flex: 1,
+    flexDirection: "row",
+    alignItems: "center",
+    justifyContent: "center",
+    gap: 8,
+    height: 48,
+    borderRadius: radii.lg,
+    borderWidth: 1,
+    borderColor: colors.hairlineGray,
+  },
+  pickerText: { ...typography.body, color: colors.ink },
+  preview: { flex: 1, borderRadius: radii.md, overflow: "hidden", backgroundColor: colors.hairlineGray, gap: 8 },
+  previewImage: { width: "100%", flex: 1 },
+  previewHint: { ...typography.label, textTransform: "none", letterSpacing: 0, textAlign: "center", paddingVertical: 6 },
+  error: { ...typography.body, color: colors.alertRed },
+});
diff --git a/mobile/app/(app)/story-viewer.tsx b/mobile/app/(app)/story-viewer.tsx
new file mode 100644
index 0000000..f0883d7
--- /dev/null
+++ b/mobile/app/(app)/story-viewer.tsx
@@ -0,0 +1,159 @@
+import { useState, useEffect, useCallback, useRef } from "react";
+import { View, Text, Pressable, StyleSheet } from "react-native";
+import { useLocalSearchParams, useRouter } from "expo-router";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import { Image } from "expo-image";
+import { X } from "lucide-react-native";
+import { useTRPC } from "../../src/api/trpc";
+import { useActivePet } from "../../src/context/ActivePetContext";
+import { PetAvatar } from "../../src/components/PetAvatar";
+import { getMediaUrl } from "../../src/lib/media-url";
+import { colors } from "../../src/theme/tokens";
+
+const STORY_DURATION_MS = 5000;
+
+/**
+ * Port of web's src/components/stories/StoryViewer.tsx, scoped to photo
+ * stories only (no Mux video story playback — see story-new.tsx). Also
+ * drops the owner-only viewer-count/list Sheet and the paw-reaction/comment
+ * overlay (Gitea #29 additions on web) — fast-follows, not core to "view a
+ * story". Tap the left third to go back a story, the rest to skip ahead;
+ * a fixed timer still auto-advances either way.
+ */
+export default function StoryViewerScreen() {
+  const { petId, petName, petAvatarKey } = useLocalSearchParams<{
+    petId: string;
+    petName: string;
+    petAvatarKey?: string;
+  }>();
+  const router = useRouter();
+  const trpc = useTRPC();
+  const queryClient = useQueryClient();
+  const { activePetId } = useActivePet();
+
+  const { data: stories = [] } = useQuery(trpc.stories.listActive.queryOptions({ petId }));
+  const [index, setIndex] = useState(0);
+  const [progress, setProgress] = useState(0);
+  const advancedRef = useRef(false);
+
+  const currentStory = stories[index];
+  const recordViewMutation = useMutation(trpc.stories.recordView.mutationOptions());
+
+  const close = useCallback(() => {
+    queryClient.invalidateQueries(trpc.stories.hasActiveStory.queryOptions({ petId }));
+    queryClient.invalidateQueries(trpc.follows.pathFilter());
+    router.back();
+  }, [queryClient, trpc, petId, router]);
+
+  const advance = useCallback(() => {
+    if (advancedRef.current) return;
+    advancedRef.current = true;
+    if (index < stories.length - 1) {
+      setIndex((i) => i + 1);
+    } else {
+      close();
+    }
+  }, [index, stories.length, close]);
+
+  const goBack = useCallback(() => {
+    if (index === 0) return;
+    advancedRef.current = true;
+    setIndex((i) => i - 1);
+  }, [index]);
+
+  // Record a deduplicated view once this story is on screen.
+  useEffect(() => {
+    if (!currentStory || !activePetId || activePetId === petId) return;
+    recordViewMutation.mutate({ storyId: currentStory.id, viewerPetId: activePetId });
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [currentStory?.id, activePetId]);
+
+  // Fixed-duration progress bar, auto-advances/closes when it fills.
+  useEffect(() => {
+    if (!currentStory) return;
+    setProgress(0);
+    advancedRef.current = false;
+    const startTime = Date.now();
+    let rafId: number;
+
+    function tick() {
+      const pct = Math.min(((Date.now() - startTime) / STORY_DURATION_MS) * 100, 100);
+      setProgress(pct);
+      if (pct < 100) rafId = requestAnimationFrame(tick);
+      else advance();
+    }
+
+    rafId = requestAnimationFrame(tick);
+    return () => cancelAnimationFrame(rafId);
+  }, [currentStory, advance]);
+
+  if (!currentStory) return null;
+
+  const mediaUrl = currentStory.storageKey ? getMediaUrl(currentStory.storageKey) : null;
+
+  return (
+    <View style={styles.backdrop}>
+      <View style={styles.progressRow}>
+        {stories.map((s, i) => (
+          <View key={s.id} style={styles.progressTrack}>
+            <View
+              style={[
+                styles.progressFill,
+                { width: `${i < index ? 100 : i === index ? progress : 0}%` },
+              ]}
+            />
+          </View>
+        ))}
+      </View>
+
+      {mediaUrl && <Image source={{ uri: mediaUrl }} style={styles.media} contentFit="contain" />}
+
+      <View style={styles.tapZones}>
+        <Pressable style={styles.tapZoneLeft} onPress={goBack} />
+        <Pressable style={styles.tapZoneRight} onPress={advance} />
+      </View>
+
+      <View style={styles.petInfo}>
+        <PetAvatar name={petName} avatarKey={petAvatarKey || null} size="sm" />
+        <Text style={styles.petName}>{petName}</Text>
+      </View>
+
+      <Pressable style={styles.closeButton} onPress={close} hitSlop={12}>
+        <X color={colors.pureWhite} size={22} />
+      </Pressable>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  backdrop: { flex: 1, backgroundColor: colors.ink },
+  media: { flex: 1, width: "100%" },
+  tapZones: { position: "absolute", top: 0, left: 0, right: 0, bottom: 0, flexDirection: "row" },
+  tapZoneLeft: { flex: 1 },
+  tapZoneRight: { flex: 2 },
+  progressRow: { position: "absolute", top: 12, left: 12, right: 12, flexDirection: "row", gap: 4, zIndex: 2 },
+  progressTrack: { flex: 1, height: 2, borderRadius: 1, backgroundColor: "rgba(255,255,255,0.3)", overflow: "hidden" },
+  progressFill: { height: "100%", backgroundColor: colors.marigoldOrange },
+  petInfo: {
+    position: "absolute",
+    bottom: 24,
+    left: 16,
+    flexDirection: "row",
+    alignItems: "center",
+    gap: 8,
+    zIndex: 2,
+  },
+  petName: { color: colors.pureWhite, fontWeight: "600", fontSize: 14 },
+  closeButton: {
+    position: "absolute",
+    top: 32,
+    right: 16,
+    width: 40,
+    height: 40,
+    borderRadius: 20,
+    backgroundColor: "rgba(0,0,0,0.4)",
+    alignItems: "center",
+    justifyContent: "center",
+    zIndex: 2,
+  },
+});
diff --git a/mobile/package-lock.json b/mobile/package-lock.json
index 6b0b471..c20033a 100644
--- a/mobile/package-lock.json
+++ b/mobile/package-lock.json
@@ -27,6 +27,7 @@
         "expo-secure-store": "~57.0.2",
         "expo-status-bar": "~57.0.1",
         "expo-system-ui": "~57.0.3",
+        "expo-video": "~57.0.3",
         "lucide-react-native": "^1.41.0",
         "react": "19.2.3",
         "react-dom": "19.2.3",
@@ -6015,6 +6016,17 @@
         "expo": "*"
       }
     },
+    "node_modules/expo-video": {
+      "version": "57.0.3",
+      "resolved": "https://registry.npmjs.org/expo-video/-/expo-video-57.0.3.tgz",
+      "integrity": "sha512-Z+rLdBSzICwoHm/HUxND5fm5nfgqiB+QPWAOKxmA8ScYwvxG1UGjZ6OaayvPc3GkT4aucsbycmFO0uUv/qnIhg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*",
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/expo/node_modules/@expo/cli": {
       "version": "57.0.21",
       "resolved": "https://registry.npmjs.org/@expo/cli/-/cli-57.0.21.tgz",
diff --git a/mobile/package.json b/mobile/package.json
index 4313576..648ee38 100644
--- a/mobile/package.json
+++ b/mobile/package.json
@@ -22,6 +22,7 @@
     "expo-secure-store": "~57.0.2",
     "expo-status-bar": "~57.0.1",
     "expo-system-ui": "~57.0.3",
+    "expo-video": "~57.0.3",
     "lucide-react-native": "^1.41.0",
     "react": "19.2.3",
     "react-dom": "19.2.3",
diff --git a/mobile/src/components/FollowButton.tsx b/mobile/src/components/FollowButton.tsx
new file mode 100644
index 0000000..7f35640
--- /dev/null
+++ b/mobile/src/components/FollowButton.tsx
@@ -0,0 +1,59 @@
+import { useState } from "react";
+import { StyleSheet } from "react-native";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { useTRPC } from "../api/trpc";
+import { Button } from "./Button";
+
+type Props = {
+  followerPetId: string;
+  followeePetId: string;
+  /** Compact 36px pill for list rows (search results) instead of the full 48px button used standalone on the pet profile screen. */
+  compact?: boolean;
+};
+
+/**
+ * Extracted from the inline follow/unfollow logic in pets/[petId]/index.tsx
+ * now that a second call site (search results) needs the same toggle.
+ */
+export function FollowButton({ followerPetId, followeePetId, compact }: Props) {
+  const trpc = useTRPC();
+  const queryClient = useQueryClient();
+
+  const { data: isFollowing } = useQuery(
+    trpc.follows.isFollowing.queryOptions({ followerPetId, followeePetId })
+  );
+
+  const [pending, setPending] = useState(false);
+  const followMutation = useMutation(
+    trpc.follows.create.mutationOptions({
+      onMutate: () => setPending(true),
+      onSuccess: () => queryClient.invalidateQueries(trpc.follows.pathFilter()),
+      onSettled: () => setPending(false),
+    })
+  );
+  const unfollowMutation = useMutation(
+    trpc.follows.delete.mutationOptions({
+      onMutate: () => setPending(true),
+      onSuccess: () => queryClient.invalidateQueries(trpc.follows.pathFilter()),
+      onSettled: () => setPending(false),
+    })
+  );
+
+  return (
+    <Button
+      title={isFollowing ? "Entfolgen" : "Folgen"}
+      variant={isFollowing ? "outline" : "primary"}
+      disabled={pending}
+      onPress={() => {
+        const params = { followerPetId, followeePetId };
+        if (isFollowing) unfollowMutation.mutate(params);
+        else followMutation.mutate(params);
+      }}
+      style={compact ? styles.compact : undefined}
+    />
+  );
+}
+
+const styles = StyleSheet.create({
+  compact: { height: 36, paddingHorizontal: 14 },
+});
diff --git a/mobile/src/components/PawRing.tsx b/mobile/src/components/PawRing.tsx
new file mode 100644
index 0000000..9793fb2
--- /dev/null
+++ b/mobile/src/components/PawRing.tsx
@@ -0,0 +1,67 @@
+import { View, Pressable } from "react-native";
+import Svg, { Circle } from "react-native-svg";
+import { useQuery } from "@tanstack/react-query";
+import { useTRPC } from "../api/trpc";
+import { useActivePet } from "../context/ActivePetContext";
+
+type Props = {
+  petId: string;
+  children: React.ReactNode;
+  /** Avatar size in px — used to scale the paw outline (default: 32) */
+  size?: number;
+  onPress?: () => void;
+};
+
+const RING_PAD = 8;
+const UNSEEN_COLOR = "#f97316";
+const SEEN_COLOR = "#9ca3af";
+
+/**
+ * Port of web's src/components/stories/PawRing.tsx — a paw-print outline
+ * (one big circle + four "toe bean" circles) drawn with react-native-svg
+ * instead of inline SVG markup. Orange = unseen stories, gray = all seen,
+ * no ring = no active story (STORY-02).
+ */
+export function PawRing({ petId, children, size = 32, onPress }: Props) {
+  const trpc = useTRPC();
+  const { activePetId } = useActivePet();
+
+  const { data = { hasStory: false, allSeen: false } } = useQuery(
+    trpc.stories.hasActiveStory.queryOptions({ petId, viewerPetId: activePetId ?? undefined })
+  );
+  const { hasStory, allSeen } = data;
+  const ringColor = allSeen ? SEEN_COLOR : UNSEEN_COLOR;
+
+  const outerSize = size + RING_PAD * 2;
+  const strokeWidth = Math.max(4, size / 8);
+  const beans = [
+    { cx: 13, cy: 10, r: 8 },
+    { cx: 31, cy: 1, r: 10 },
+    { cx: 69, cy: 1, r: 10 },
+    { cx: 87, cy: 10, r: 8 },
+  ];
+
+  const content = (
+    <View style={{ width: outerSize, height: outerSize, alignItems: "center", justifyContent: "center" }}>
+      {hasStory && (
+        <Svg
+          width={outerSize}
+          height={outerSize}
+          viewBox="0 0 100 100"
+          style={{ position: "absolute" }}
+        >
+          <Circle cx={50} cy={50} r={44} fill="none" stroke={ringColor} strokeWidth={strokeWidth} />
+          {beans.map((b, i) => (
+            <Circle key={i} cx={b.cx} cy={b.cy} r={b.r} fill={ringColor} />
+          ))}
+        </Svg>
+      )}
+      {children}
+    </View>
+  );
+
+  if (hasStory && onPress) {
+    return <Pressable onPress={onPress}>{content}</Pressable>;
+  }
+  return content;
+}
diff --git a/mobile/src/components/PostCard.tsx b/mobile/src/components/PostCard.tsx
index dd250d1..8060b8d 100644
--- a/mobile/src/components/PostCard.tsx
+++ b/mobile/src/components/PostCard.tsx
@@ -1,12 +1,13 @@
 import { View, Text, Pressable, StyleSheet, ScrollView, useWindowDimensions } from "react-native";
 import { useRouter } from "expo-router";
 import { Image } from "expo-image";
-import { MessageCircle, Video } from "lucide-react-native";
+import { MessageCircle } from "lucide-react-native";
 import { PetAvatar } from "./PetAvatar";
 import { PetIdentityBadges } from "./PetIdentityBadges";
 import { PawButton } from "./PawButton";
 import { PawBackButton } from "./PawBackButton";
 import { RepostCard } from "./RepostCard";
+import { VideoPlayer } from "./VideoPlayer";
 import { getMediaUrl } from "../lib/media-url";
 import { formatPetName, formatRelativeTime } from "../lib/format";
 import { colors, typography, radii } from "../theme/tokens";
@@ -44,6 +45,7 @@ export type PostCardPost = {
   repostCount?: number | null;
   images: PostCardImage[];
   repost?: { originalPost: PostCardOriginalPost } | null;
+  videoPost?: { status: "PROCESSING" | "READY" | "ERROR"; muxPlaybackId?: string | null } | null;
   pet: {
     id: string;
     name: string;
@@ -96,10 +98,13 @@ export function PostCard({ post, actingPetId }: Props) {
         </View>
       </Pressable>
 
-      {post.type === "VIDEO" ? (
-        <View style={[styles.videoPlaceholder, { width: cardWidth }]}>
-          <Video size={32} color={colors.pureWhite} />
-        </View>
+      {post.type === "VIDEO" && post.videoPost ? (
+        <VideoPlayer
+          postId={post.id}
+          initialStatus={post.videoPost.status}
+          initialPlaybackId={post.videoPost.muxPlaybackId}
+          width={cardWidth}
+        />
       ) : (
         <PostImages images={post.images} width={cardWidth} onPressImage={openViewer} />
       )}
@@ -168,11 +173,4 @@ const styles = StyleSheet.create({
   actions: { flexDirection: "row", alignItems: "center", gap: 20 },
   actionGroup: { flexDirection: "row", alignItems: "center", gap: 6 },
   actionCount: { ...typography.body, color: colors.quietGray, fontSize: 13 },
-  videoPlaceholder: {
-    aspectRatio: 9 / 16,
-    borderRadius: radii.md,
-    backgroundColor: colors.ink,
-    alignItems: "center",
-    justifyContent: "center",
-  },
 });
diff --git a/mobile/src/components/StoryTray.tsx b/mobile/src/components/StoryTray.tsx
new file mode 100644
index 0000000..0fbe99e
--- /dev/null
+++ b/mobile/src/components/StoryTray.tsx
@@ -0,0 +1,77 @@
+import { ScrollView, View, Text, Pressable, StyleSheet } from "react-native";
+import { useRouter } from "expo-router";
+import { useQuery } from "@tanstack/react-query";
+import { PlusCircle } from "lucide-react-native";
+import { useTRPC } from "../api/trpc";
+import { useActivePet } from "../context/ActivePetContext";
+import { PawRing } from "./PawRing";
+import { PetAvatar } from "./PetAvatar";
+import { colors, fontFamily } from "../theme/tokens";
+
+const AVATAR_SIZE = 56;
+
+/**
+ * Port of web's src/components/stories/StoryTray.tsx: an "add story" tile
+ * for the active pet, then followed pets with an active story (each in a
+ * PawRing). No viewer list, reactions, or comments on stories yet (Gitea
+ * #29 on web) — that's a fast-follow, matching how earlier phases trimmed
+ * AI-disclosure/mentions from ported forms. Photo stories only, no video
+ * story upload/playback (mirrors mobile's post-creation scope decision).
+ */
+export function StoryTray() {
+  const trpc = useTRPC();
+  const router = useRouter();
+  const { activePetId } = useActivePet();
+
+  const { data: followedWithStories = [] } = useQuery({
+    ...trpc.follows.getPetsWithActiveStories.queryOptions({ followerPetId: activePetId ?? "" }),
+    enabled: !!activePetId,
+  });
+
+  return (
+    <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.row}>
+      <Pressable style={styles.item} onPress={() => router.push("/story-new")}>
+        <View style={styles.addButton}>
+          <PlusCircle color={colors.pureWhite} size={26} />
+        </View>
+        <Text style={styles.label} numberOfLines={1}>
+          Story
+        </Text>
+      </Pressable>
+
+      {followedWithStories.map((pet) => (
+        <Pressable
+          key={pet.id}
+          style={styles.item}
+          onPress={() =>
+            router.push({
+              pathname: "/story-viewer",
+              params: { petId: pet.id, petName: pet.name, petAvatarKey: pet.avatarKey ?? "" },
+            })
+          }
+        >
+          <PawRing petId={pet.id} size={AVATAR_SIZE}>
+            <PetAvatar name={pet.name} avatarKey={pet.avatarKey} size="lg" />
+          </PawRing>
+          <Text style={styles.label} numberOfLines={1}>
+            {pet.name}
+          </Text>
+        </Pressable>
+      ))}
+    </ScrollView>
+  );
+}
+
+const styles = StyleSheet.create({
+  row: { gap: 16, paddingHorizontal: 16, paddingVertical: 12 },
+  item: { alignItems: "center", gap: 4, width: 72 },
+  addButton: {
+    width: AVATAR_SIZE,
+    height: AVATAR_SIZE,
+    borderRadius: AVATAR_SIZE / 2,
+    backgroundColor: colors.marigoldOrange,
+    alignItems: "center",
+    justifyContent: "center",
+  },
+  label: { fontFamily: fontFamily.regular, fontSize: 11, color: colors.ink },
+});
diff --git a/mobile/src/components/VideoPlayer.tsx b/mobile/src/components/VideoPlayer.tsx
new file mode 100644
index 0000000..03f1c4c
--- /dev/null
+++ b/mobile/src/components/VideoPlayer.tsx
@@ -0,0 +1,92 @@
+import { useEffect } from "react";
+import { View, Text, ActivityIndicator, StyleSheet } from "react-native";
+import { useQuery, useQueryClient } from "@tanstack/react-query";
+import { AlertCircle } from "lucide-react-native";
+import { useVideoPlayer, VideoView } from "expo-video";
+import { useTRPC } from "../api/trpc";
+import { colors, radii, typography } from "../theme/tokens";
+
+type Status = "PROCESSING" | "READY" | "ERROR";
+
+type Props = {
+  postId: string;
+  /** Initial status from the feed/profile query — avoids a redundant fetch when already READY */
+  initialStatus: Status;
+  initialPlaybackId?: string | null;
+  width: number;
+};
+
+/**
+ * Port of web's src/components/video/VideoCard.tsx. Mux serves HLS, which
+ * expo-video plays natively (AVPlayer/ExoPlayer under the hood) — no
+ * separate player SDK needed the way web needs @mux/mux-player-react.
+ */
+export function VideoPlayer({ postId, initialStatus, initialPlaybackId, width }: Props) {
+  const trpc = useTRPC();
+  const queryClient = useQueryClient();
+
+  // Poll while PROCESSING — stop once READY or ERROR
+  const { data } = useQuery({
+    ...trpc.videos.getByPostId.queryOptions({ postId }),
+    enabled: initialStatus === "PROCESSING",
+    refetchInterval: (query) => (query.state.data?.status === "PROCESSING" ? 5000 : false),
+  });
+
+  const status = data?.status ?? initialStatus;
+  const playbackId = data?.muxPlaybackId ?? initialPlaybackId;
+
+  useEffect(() => {
+    if (status === "READY" && initialStatus === "PROCESSING") {
+      queryClient.invalidateQueries(trpc.feed.pathFilter());
+      queryClient.invalidateQueries(trpc.posts.pathFilter());
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [status, initialStatus]);
+
+  if (status === "PROCESSING") {
+    return (
+      <View style={[styles.box, { width }]}>
+        <ActivityIndicator color={colors.marigoldOrange} />
+        <Text style={styles.label}>Video wird verarbeitet…</Text>
+      </View>
+    );
+  }
+
+  if (status === "ERROR" || !playbackId) {
+    return (
+      <View style={[styles.box, { width }]}>
+        <AlertCircle color={colors.alertRed} size={28} />
+        <Text style={styles.label}>Video konnte nicht verarbeitet werden.</Text>
+      </View>
+    );
+  }
+
+  return <ReadyVideo playbackId={playbackId} width={width} />;
+}
+
+function ReadyVideo({ playbackId, width }: { playbackId: string; width: number }) {
+  const player = useVideoPlayer(`https://stream.mux.com/${playbackId}.m3u8`, (p) => {
+    p.loop = true;
+  });
+
+  return (
+    <VideoView
+      player={player}
+      style={{ width, aspectRatio: 16 / 9, borderRadius: radii.md, backgroundColor: colors.ink }}
+      nativeControls
+      contentFit="contain"
+    />
+  );
+}
+
+const styles = StyleSheet.create({
+  box: {
+    aspectRatio: 16 / 9,
+    borderRadius: radii.md,
+    backgroundColor: colors.ink,
+    alignItems: "center",
+    justifyContent: "center",
+    gap: 8,
+  },
+  label: { ...typography.label, textTransform: "none", letterSpacing: 0, color: colors.pureWhite },
+});
diff --git a/mobile/src/hooks/useDebounce.ts b/mobile/src/hooks/useDebounce.ts
new file mode 100644
index 0000000..aca1fc2
--- /dev/null
+++ b/mobile/src/hooks/useDebounce.ts
@@ -0,0 +1,13 @@
+import { useEffect, useState } from "react";
+
+/** Port of web's src/hooks/use-debounce.ts. */
+export function useDebounce<T>(value: T, delayMs: number): T {
+  const [debounced, setDebounced] = useState(value);
+
+  useEffect(() => {
+    const id = setTimeout(() => setDebounced(value), delayMs);
+    return () => clearTimeout(id);
+  }, [value, delayMs]);
+
+  return debounced;
+}