diff --git a/package.json b/package.json
index 8b72f3c..d0ef469 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "sociowire-frontend",
   "private": true,
-  "version": "0.0.135",
+  "version": "0.0.136",
   "type": "module",
   "scripts": {
     "dev": "vite --host 0.0.0.0",
diff --git a/src/App.jsx b/src/App.jsx
index 5f07d69..7d5fac5 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -8,6 +8,7 @@ import IslandViewer from "./components/Island/IslandViewer";
 import ChatContainer from "./components/Chat/ChatContainer";
 import PostDetailModal from "./components/Posts/PostDetailModal";
 import PostComposer, { CreatePostFAB } from "./components/Posts/PostComposer";
+import { AppStore } from "./components/Apps";
 import { AnimatePresence, motion } from "framer-motion";
 import { fetchIslandByUsername } from "./api/client";
 
@@ -74,6 +75,9 @@ export default function App() {
   // Post detail modal state (triggered from map markers)
   const [detailPost, setDetailPost] = useState(null);
 
+  // App Store state
+  const [showAppStore, setShowAppStore] = useState(false);
+
   const handlePostsState = useCallback((next) => {
     if (!next) return;
     if (Array.isArray(next.posts)) setWallPosts(next.posts);
@@ -244,6 +248,7 @@ export default function App() {
         onMapClick={handleOpenMap}
         onUserIsland={handleOpenUserIsland}
         currentView={currentView}
+        onOpenAppStore={() => setShowAppStore(true)}
       />
 
       <div className="main-shell">
@@ -419,6 +424,15 @@ export default function App() {
 
       {/* Floating Action Button for creating posts */}
       <CreatePostFAB />
+
+      {/* App Store Modal */}
+      <AnimatePresence>
+        {showAppStore && (
+          <AppStore
+            onClose={() => setShowAppStore(false)}
+          />
+        )}
+      </AnimatePresence>
     </div>
   );
 }
diff --git a/src/components/Layout/TopBarNew.jsx b/src/components/Layout/TopBarNew.jsx
index 507d87e..696e207 100644
--- a/src/components/Layout/TopBarNew.jsx
+++ b/src/components/Layout/TopBarNew.jsx
@@ -252,7 +252,7 @@ function UserChip({ authenticated, loading, username, avatarUrl: propAvatarUrl,
 // Main Component
 // ─────────────────────────────────────────────────────────────────────────────
 
-export default function TopBarNew({ theme = "dark", onChangeTheme, onIslandsClick, onPlanetsClick, onMapClick, onUserIsland, onMyLocation, onSearch, currentView }) {
+export default function TopBarNew({ theme = "dark", onChangeTheme, onIslandsClick, onPlanetsClick, onMapClick, onUserIsland, onMyLocation, onSearch, currentView, onOpenAppStore }) {
   const { t, i18n } = useTranslation();
   const {
     loading, authenticated, username, login, logout, restore, loginWithProvider, ssoEnabled,
@@ -923,6 +923,18 @@ export default function TopBarNew({ theme = "dark", onChangeTheme, onIslandsClic
               )}
             </motion.button>
 
+            {/* App Store */}
+            <motion.button
+              className="w-7 h-7 sm:w-8 sm:h-8 md:w-9 md:h-9 rounded-lg sm:rounded-xl flex items-center justify-center transition-all text-xs sm:text-sm
+                bg-surface-800/50 text-surface-400 border-white/5 border hover:bg-purple-500/20 hover:text-purple-400 hover:border-purple-500/40"
+              onClick={() => authenticated ? onOpenAppStore?.() : openModal("login")}
+              whileHover={{ scale: 1.1 }}
+              whileTap={{ scale: 0.9 }}
+              title={t('topbar.appStore', 'App Store')}
+            >
+              <i className="fa-solid fa-puzzle-piece" />
+            </motion.button>
+
             {/* Separator */}
             <div className="hidden sm:block w-px h-7 bg-gradient-to-b from-transparent via-white/20 to-transparent mx-1" />
 
diff --git a/src/components/Posts/PostCreateModal.jsx b/src/components/Posts/PostCreateModal.jsx
index e7c848a..37243a5 100644
--- a/src/components/Posts/PostCreateModal.jsx
+++ b/src/components/Posts/PostCreateModal.jsx
@@ -2,6 +2,7 @@ import React, { useState, useRef, useCallback, useEffect } from "react";
 import { motion, AnimatePresence } from "framer-motion";
 import { useTranslation } from "react-i18next";
 import { uploadPostMedia, fetchPostPreview } from "../../api/client";
+import { listSubscriptions, uploadPostImages, createPost as createAppPost } from "../../api/extAppsApi";
 
 // Content modes
 const CONTENT_MODES = [
@@ -16,6 +17,7 @@ const CATEGORIES = [
   { id: "Friends", icon: "fa-user-group", color: "from-emerald-500 to-green-500" },
   { id: "Events", icon: "fa-calendar", color: "from-purple-500 to-violet-500" },
   { id: "Market", icon: "fa-store", color: "from-amber-500 to-orange-500" },
+  { id: "Apps", icon: "fa-puzzle-piece", color: "from-pink-500 to-purple-500" },
 ];
 
 const SUB_CATEGORIES = {
@@ -23,6 +25,7 @@ const SUB_CATEGORIES = {
   Friends: ["Nearby", "Stories", "Hangout", "Help"],
   Events: ["Today", "Weekend", "Music", "Sports", "Food"],
   Market: ["Deals", "Services", "Jobs", "Housing"],
+  Apps: [], // Dynamic - loaded from subscriptions
 };
 
 export default function PostCreateModal({
@@ -46,6 +49,11 @@ export default function PostCreateModal({
   const [linkLoading, setLinkLoading] = useState(false);
   const [images, setImages] = useState([]);
   const [uploading, setUploading] = useState(false);
+  const [price, setPrice] = useState("");
+  // External apps state
+  const [subscribedApps, setSubscribedApps] = useState([]);
+  const [selectedApp, setSelectedApp] = useState(null);
+  const [appsLoading, setAppsLoading] = useState(false);
   const fileInputRef = useRef(null);
   const cameraInputRef = useRef(null);
   const textareaRef = useRef(null);
@@ -77,6 +85,25 @@ export default function PostCreateModal({
     }
   }, [body]);
 
+  // Load subscribed apps when Apps category is selected
+  useEffect(() => {
+    if (category === "Apps" && subscribedApps.length === 0 && !appsLoading) {
+      setAppsLoading(true);
+      listSubscriptions()
+        .then((result) => {
+          const apps = (result.subscriptions || []).filter(
+            (sub) => sub.capabilities?.includes("posts")
+          );
+          setSubscribedApps(apps);
+          if (apps.length > 0 && !selectedApp) {
+            setSelectedApp(apps[0]);
+          }
+        })
+        .catch((err) => console.error("Failed to load apps:", err))
+        .finally(() => setAppsLoading(false));
+    }
+  }, [category, subscribedApps.length, appsLoading, selectedApp]);
+
   // Link preview fetch
   useEffect(() => {
     if (mode !== "link" || !linkUrl.trim()) {
@@ -132,7 +159,7 @@ export default function PostCreateModal({
     setImages((prev) => prev.filter((_, i) => i !== index));
   };
 
-  const handleSubmit = () => {
+  const handleSubmit = async () => {
     if (mode === "live") {
       onGoLive?.({ category, subCategory, title, body, coords });
       return;
@@ -140,6 +167,45 @@ export default function PostCreateModal({
 
     if (!title.trim() && !body.trim() && images.length === 0 && !linkUrl.trim()) return;
 
+    // Handle external app posts
+    if (category === "Apps" && selectedApp) {
+      try {
+        setUploading(true);
+
+        // Upload images to app's S3 via Sociowire
+        let uploadedImages = [];
+        if (images.length > 0) {
+          // Convert URLs to files for re-upload to app
+          // Note: images are already uploaded to Sociowire, we need to reference them
+          uploadedImages = images; // For now, pass the URLs directly
+        }
+
+        // Create post via apps-gateway
+        const postData = {
+          title: title.trim(),
+          description: body.trim(),
+          images: uploadedImages,
+          location: coords ? {
+            lat: coords[1],
+            lon: coords[0],
+          } : null,
+          content: {}
+        };
+
+        if (price) {
+          postData.content.price = parseFloat(price);
+        }
+
+        await createAppPost(selectedApp.app_id, postData);
+        onClose?.();
+      } catch (err) {
+        setUploadError(err.message || "Failed to create app post");
+      } finally {
+        setUploading(false);
+      }
+      return;
+    }
+
     onSubmit?.({
       mode,
       title: title.trim(),
@@ -154,7 +220,9 @@ export default function PostCreateModal({
   };
 
   const canSubmit = mode === "live" ||
-    (title.trim() || body.trim() || images.length > 0 || linkUrl.trim()) && !isSaving && !uploading;
+    (category === "Apps"
+      ? (selectedApp && title.trim() && coords && !isSaving && !uploading)
+      : ((title.trim() || body.trim() || images.length > 0 || linkUrl.trim()) && !isSaving && !uploading));
 
   if (!isOpen) return null;
 
@@ -272,21 +340,54 @@ export default function PostCreateModal({
               ))}
             </div>
 
-            {/* Sub-category */}
-            <div className="flex gap-1.5 overflow-x-auto pb-1">
-              {SUB_CATEGORIES[category]?.map((sub) => (
-                <button
-                  key={sub}
-                  className={`px-2.5 py-1 rounded-lg text-[11px] font-medium whitespace-nowrap transition-all
-                             ${subCategory === sub
-                               ? "bg-accent/20 text-accent border border-accent/40"
-                               : "bg-surface-700/30 text-surface-500 border border-transparent hover:text-surface-300"}`}
-                  onClick={() => setSubCategory(sub)}
-                >
-                  {sub}
-                </button>
-              ))}
-            </div>
+            {/* Sub-category or App selector */}
+            {category === "Apps" ? (
+              <div className="space-y-2">
+                {appsLoading ? (
+                  <div className="flex items-center gap-2 text-surface-400 text-sm">
+                    <i className="fa-solid fa-spinner fa-spin" />
+                    Chargement des apps...
+                  </div>
+                ) : subscribedApps.length === 0 ? (
+                  <div className="p-3 rounded-xl bg-surface-700/30 border border-white/5 text-center">
+                    <i className="fa-solid fa-puzzle-piece text-2xl text-surface-600 mb-2" />
+                    <p className="text-surface-400 text-sm">Aucune app disponible</p>
+                    <p className="text-surface-500 text-xs mt-1">Abonnez-vous à une app dans l'App Store</p>
+                  </div>
+                ) : (
+                  <div className="flex gap-2 overflow-x-auto pb-1">
+                    {subscribedApps.map((app) => (
+                      <button
+                        key={app.app_id}
+                        className={`flex items-center gap-2 px-3 py-2 rounded-xl text-sm font-medium whitespace-nowrap transition-all border
+                                   ${selectedApp?.app_id === app.app_id
+                                     ? "bg-gradient-to-r from-pink-500 to-purple-500 text-white border-transparent"
+                                     : "bg-surface-700/30 text-surface-400 border-surface-600/50 hover:border-surface-500"}`}
+                        onClick={() => setSelectedApp(app)}
+                      >
+                        <i className="fa-solid fa-puzzle-piece" />
+                        {app.app_name}
+                      </button>
+                    ))}
+                  </div>
+                )}
+              </div>
+            ) : (
+              <div className="flex gap-1.5 overflow-x-auto pb-1">
+                {SUB_CATEGORIES[category]?.map((sub) => (
+                  <button
+                    key={sub}
+                    className={`px-2.5 py-1 rounded-lg text-[11px] font-medium whitespace-nowrap transition-all
+                               ${subCategory === sub
+                                 ? "bg-accent/20 text-accent border border-accent/40"
+                                 : "bg-surface-700/30 text-surface-500 border border-transparent hover:text-surface-300"}`}
+                    onClick={() => setSubCategory(sub)}
+                  >
+                    {sub}
+                  </button>
+                ))}
+              </div>
+            )}
 
             {/* Link input (for link mode) */}
             {mode === "link" && (
@@ -379,6 +480,26 @@ export default function PostCreateModal({
               />
             )}
 
+            {/* Price input for Apps */}
+            {category === "Apps" && selectedApp && (
+              <div className="relative">
+                <i className="fa-solid fa-dollar-sign absolute left-4 top-1/2 -translate-y-1/2 text-emerald-500" />
+                <input
+                  type="number"
+                  placeholder="Prix (optionnel)"
+                  value={price}
+                  onChange={(e) => setPrice(e.target.value)}
+                  min="0"
+                  step="0.01"
+                  className="w-full pl-10 pr-4 py-3 rounded-xl
+                             bg-surface-700/50 border border-white/10
+                             text-white text-base
+                             placeholder:text-surface-500
+                             focus:outline-none focus:border-emerald-500/50"
+                />
+              </div>
+            )}
+
             {/* Image gallery (for photo/text modes) */}
             {(mode === "photo" || mode === "text") && images.length > 0 && (
               <div className="grid grid-cols-3 gap-2">