diff --git a/app/Http/Controllers/Link/LinkController.php b/app/Http/Controllers/Link/LinkController.php
index 53a8229..b4b00d6 100644
--- a/app/Http/Controllers/Link/LinkController.php
+++ b/app/Http/Controllers/Link/LinkController.php
@@ -5,6 +5,7 @@ namespace App\Http\Controllers\Link;
 use App\Http\Controllers\Controller;
 use App\Models\ShortLink;
 use App\Services\Link\LinkBillingService;
+use App\Services\Link\LinkCatalogSyncService;
 use App\Services\Link\LinkManagerService;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
@@ -16,11 +17,14 @@ class LinkController extends Controller
     public function __construct(
         private LinkManagerService $links,
         private LinkBillingService $billing,
+        private LinkCatalogSyncService $catalogSync,
     ) {}
 
     public function index(Request $request): View
     {
         $account = ladill_account();
+        $this->catalogSync->syncForUser($account);
+
         $links = ShortLink::query()
             ->where('user_id', $account->id)
             ->latest()
@@ -77,6 +81,10 @@ class LinkController extends Controller
     {
         $this->authorizeLink($link);
 
+        if (! $link->is_managed_here) {
+            return back()->withErrors(['link' => 'This link is managed in '.$link->sourceAppLabel().'.']);
+        }
+
         $validated = $request->validate([
             'destination_url' => ['sometimes', 'required', 'string', 'max:2048'],
             'label' => ['nullable', 'string', 'max:120'],
@@ -96,6 +104,11 @@ class LinkController extends Controller
     public function destroy(ShortLink $link): RedirectResponse
     {
         $this->authorizeLink($link);
+
+        if (! $link->is_managed_here) {
+            return back()->withErrors(['link' => 'This link is managed in '.$link->sourceAppLabel().'.']);
+        }
+
         $link->delete();
 
         return redirect()->route('user.links.index')->with('success', 'Link deleted.');
diff --git a/app/Http/Controllers/Link/OverviewController.php b/app/Http/Controllers/Link/OverviewController.php
index 438fe77..61c7454 100644
--- a/app/Http/Controllers/Link/OverviewController.php
+++ b/app/Http/Controllers/Link/OverviewController.php
@@ -4,13 +4,19 @@ namespace App\Http\Controllers\Link;
 
 use App\Http\Controllers\Controller;
 use App\Models\ShortLink;
+use App\Services\Link\LinkCatalogSyncService;
 use Illuminate\View\View;
 
 class OverviewController extends Controller
 {
+    public function __construct(
+        private LinkCatalogSyncService $catalogSync,
+    ) {}
+
     public function index(): View
     {
         $account = ladill_account();
+        $this->catalogSync->syncForUser($account);
         $wallet = $account->getOrCreateLinkWallet();
 
         $recentLinks = ShortLink::query()
diff --git a/app/Models/ShortLink.php b/app/Models/ShortLink.php
index c871ccc..55121e7 100644
--- a/app/Models/ShortLink.php
+++ b/app/Models/ShortLink.php
@@ -10,9 +10,14 @@ class ShortLink extends Model
 {
     protected $fillable = [
         'user_id',
+        'source_app',
+        'source_kind',
+        'source_ref',
         'slug',
         'label',
         'destination_url',
+        'manage_url',
+        'is_managed_here',
         'is_active',
         'clicks_total',
         'unique_clicks_total',
@@ -21,6 +26,7 @@ class ShortLink extends Model
     ];
 
     protected $casts = [
+        'is_managed_here' => 'boolean',
         'is_active' => 'boolean',
         'clicks_total' => 'integer',
         'unique_clicks_total' => 'integer',
@@ -57,4 +63,19 @@ class ShortLink extends Model
     {
         return $this->expires_at !== null && $this->expires_at->isPast();
     }
+
+    public function sourceAppLabel(): string
+    {
+        return match ($this->source_app) {
+            'link' => 'Ladill Link',
+            'qrplus' => 'QR Plus',
+            'merchant' => 'Merchant',
+            'events' => 'Events',
+            'mini' => 'Mini',
+            'give' => 'Give',
+            'transfer' => 'Transfer',
+            'platform' => 'Ladill',
+            default => ucfirst((string) $this->source_app),
+        };
+    }
 }
diff --git a/app/Services/Link/LinkCatalogSyncService.php b/app/Services/Link/LinkCatalogSyncService.php
new file mode 100644
index 0000000..49e16fa
--- /dev/null
+++ b/app/Services/Link/LinkCatalogSyncService.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Services\Link;
+
+use App\Models\ShortLink;
+use App\Models\User;
+use App\Support\LadillLink;
+use Illuminate\Support\Facades\DB;
+
+/**
+ * Mirrors platform-wide ladl.link slugs into the local catalog for unified listing.
+ */
+class LinkCatalogSyncService
+{
+    public function __construct(
+        private PlatformLinkCatalogClient $catalog,
+    ) {}
+
+    public function syncForUser(User $user): void
+    {
+        $remote = $this->catalog->linksForUser((string) $user->public_id);
+        $remoteSlugs = collect($remote)->pluck('slug')->filter()->all();
+
+        DB::transaction(function () use ($user, $remote, $remoteSlugs): void {
+            foreach ($remote as $row) {
+                $slug = (string) ($row['slug'] ?? '');
+                if ($slug === '') {
+                    continue;
+                }
+
+                if (ShortLink::query()
+                    ->where('slug', $slug)
+                    ->where('is_managed_here', true)
+                    ->exists()) {
+                    continue;
+                }
+
+                ShortLink::query()->updateOrCreate(
+                    ['slug' => $slug],
+                    [
+                        'user_id' => $user->id,
+                        'label' => $row['label'] ?? null,
+                        'destination_url' => (string) ($row['destination_url'] ?? LadillLink::url($slug)),
+                        'source_app' => (string) ($row['source_app'] ?? 'platform'),
+                        'source_kind' => (string) ($row['source_kind'] ?? 'qr'),
+                        'source_ref' => isset($row['source_ref']) ? (string) $row['source_ref'] : null,
+                        'manage_url' => $row['manage_url'] ?? null,
+                        'is_managed_here' => false,
+                        'is_active' => (bool) ($row['is_active'] ?? true),
+                        'clicks_total' => (int) ($row['clicks_total'] ?? 0),
+                    ],
+                );
+            }
+
+            if ($remoteSlugs !== []) {
+                ShortLink::query()
+                    ->where('user_id', $user->id)
+                    ->where('is_managed_here', false)
+                    ->whereNotIn('slug', $remoteSlugs)
+                    ->delete();
+            }
+        });
+    }
+}
diff --git a/app/Services/Link/LinkManagerService.php b/app/Services/Link/LinkManagerService.php
index 2d7a6cc..bde8148 100644
--- a/app/Services/Link/LinkManagerService.php
+++ b/app/Services/Link/LinkManagerService.php
@@ -30,6 +30,9 @@ class LinkManagerService
 
             $link = ShortLink::create([
                 'user_id' => $user->id,
+                'source_app' => 'link',
+                'source_kind' => 'redirect',
+                'is_managed_here' => true,
                 'slug' => $slug,
                 'label' => $data['label'] ?? null,
                 'destination_url' => $this->normalizeUrl($data['destination_url']),
diff --git a/app/Services/Link/PlatformLinkCatalogClient.php b/app/Services/Link/PlatformLinkCatalogClient.php
new file mode 100644
index 0000000..d867e52
--- /dev/null
+++ b/app/Services/Link/PlatformLinkCatalogClient.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Services\Link;
+
+use Illuminate\Support\Facades\Http;
+
+/**
+ * Fetches ladl.link slugs created in other Ladill apps from the platform catalog API.
+ */
+class PlatformLinkCatalogClient
+{
+    private function base(): string
+    {
+        $platform = rtrim((string) config('app.platform_url', 'https://ladill.com'), '/');
+
+        return $platform.'/api/link-catalog';
+    }
+
+    private function token(): string
+    {
+        return (string) (config('billing.api_key') ?? '');
+    }
+
+    /** @return list<array<string, mixed>> */
+    public function linksForUser(string $publicId): array
+    {
+        if ($this->token() === '') {
+            return [];
+        }
+
+        try {
+            $response = Http::withToken($this->token())
+                ->acceptJson()
+                ->timeout(12)
+                ->get($this->base().'/links', ['user' => $publicId]);
+
+            if (! $response->successful()) {
+                return [];
+            }
+
+            return array_values(array_filter(
+                (array) ($response->json('links') ?? []),
+                fn ($row) => is_array($row) && filled($row['slug'] ?? null),
+            ));
+        } catch (\Throwable) {
+            return [];
+        }
+    }
+}
diff --git a/database/migrations/2026_06_27_160000_add_source_metadata_to_short_links.php b/database/migrations/2026_06_27_160000_add_source_metadata_to_short_links.php
new file mode 100644
index 0000000..a622736
--- /dev/null
+++ b/database/migrations/2026_06_27_160000_add_source_metadata_to_short_links.php
@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('short_links', function (Blueprint $table) {
+            $table->string('source_app', 32)->default('link')->after('user_id');
+            $table->string('source_kind', 16)->default('redirect')->after('source_app');
+            $table->string('source_ref', 64)->nullable()->after('source_kind');
+            $table->string('manage_url', 512)->nullable()->after('destination_url');
+            $table->boolean('is_managed_here')->default(true)->after('manage_url');
+
+            $table->index(['user_id', 'source_app']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('short_links', function (Blueprint $table) {
+            $table->dropIndex(['user_id', 'source_app']);
+            $table->dropColumn([
+                'source_app',
+                'source_kind',
+                'source_ref',
+                'manage_url',
+                'is_managed_here',
+            ]);
+        });
+    }
+};
diff --git a/resources/views/links/index.blade.php b/resources/views/links/index.blade.php
index e89febc..d518282 100644
--- a/resources/views/links/index.blade.php
+++ b/resources/views/links/index.blade.php
@@ -23,6 +23,7 @@
                         <tr>
                             <th class="px-5 py-3">Link</th>
                             <th class="px-5 py-3">Destination</th>
+                            <th class="px-5 py-3">App</th>
                             <th class="px-5 py-3">Clicks</th>
                             <th class="px-5 py-3">Status</th>
                         </tr>
@@ -37,6 +38,9 @@
                                     <p class="text-emerald-600">{{ $link->publicUrl() }}</p>
                                 </td>
                                 <td class="max-w-xs truncate px-5 py-3 text-slate-500">{{ $link->destination_url }}</td>
+                                <td class="px-5 py-3">
+                                    <span class="rounded-full bg-slate-100 px-2 py-0.5 text-xs font-medium text-slate-600">{{ $link->sourceAppLabel() }}</span>
+                                </td>
                                 <td class="px-5 py-3 text-slate-700">{{ number_format($link->clicks_total) }}</td>
                                 <td class="px-5 py-3">
                                     @if($link->is_active && ! $link->isExpired())
diff --git a/resources/views/links/show.blade.php b/resources/views/links/show.blade.php
index 9d8c230..71ddaa0 100644
--- a/resources/views/links/show.blade.php
+++ b/resources/views/links/show.blade.php
@@ -3,19 +3,35 @@
     <div class="mx-auto max-w-3xl space-y-6">
         <div class="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
             <div>
-                <h1 class="text-2xl font-semibold text-slate-900">{{ $link->label ?: $link->slug }}</h1>
+                <div class="flex flex-wrap items-center gap-2">
+                    <h1 class="text-2xl font-semibold text-slate-900">{{ $link->label ?: $link->slug }}</h1>
+                    <span class="rounded-full bg-slate-100 px-2 py-0.5 text-xs font-medium text-slate-600">{{ $link->sourceAppLabel() }}</span>
+                </div>
                 <a href="{{ $link->publicUrl() }}" target="_blank" rel="noopener"
                    class="mt-1 inline-flex items-center gap-1 text-emerald-600 hover:text-emerald-700">
                     {{ $link->publicUrl() }}
                     <svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" d="M13.5 6H5.25A2.25 2.25 0 0 0 3 8.25v10.5A2.25 2.25 0 0 0 5.25 21h10.5A2.25 2.25 0 0 0 18 18.75V10.5m-10.5 6L21 3m0 0h-5.25M21 3v5.25" /></svg>
                 </a>
             </div>
-            <form method="POST" action="{{ route('user.links.destroy', $link) }}" onsubmit="return confirm('Delete this link?')">
-                @csrf @method('DELETE')
-                <button type="submit" class="text-sm text-red-600 hover:text-red-700">Delete</button>
-            </form>
+            @if ($link->is_managed_here)
+                <form method="POST" action="{{ route('user.links.destroy', $link) }}" onsubmit="return confirm('Delete this link?')">
+                    @csrf @method('DELETE')
+                    <button type="submit" class="text-sm text-red-600 hover:text-red-700">Delete</button>
+                </form>
+            @elseif ($link->manage_url)
+                <a href="{{ $link->manage_url }}" target="_blank" rel="noopener"
+                   class="inline-flex items-center rounded-lg border border-slate-200 px-3 py-1.5 text-sm font-medium text-slate-700 hover:bg-slate-50">
+                    Manage in {{ $link->sourceAppLabel() }}
+                </a>
+            @endif
         </div>
 
+        @if (! $link->is_managed_here)
+            <div class="rounded-xl border border-amber-200 bg-amber-50 px-4 py-3 text-sm text-amber-900">
+                This ladl.link slug was created in {{ $link->sourceAppLabel() }}. Edit it there — changes sync back here automatically.
+            </div>
+        @endif
+
         <div class="grid gap-4 sm:grid-cols-3">
             <div class="rounded-xl border border-slate-200 bg-white p-4">
                 <p class="text-sm text-slate-500">Total clicks</p>
@@ -31,29 +47,36 @@
             </div>
         </div>
 
-        <form method="POST" action="{{ route('user.links.update', $link) }}" class="space-y-4 rounded-xl border border-slate-200 bg-white p-6">
-            @csrf @method('PATCH')
+        @if ($link->is_managed_here)
+            <form method="POST" action="{{ route('user.links.update', $link) }}" class="space-y-4 rounded-xl border border-slate-200 bg-white p-6">
+                @csrf @method('PATCH')
 
-            <div>
-                <label for="destination_url" class="block text-sm font-medium text-slate-700">Destination URL</label>
-                <input type="url" name="destination_url" id="destination_url" value="{{ old('destination_url', $link->destination_url) }}" required
-                       class="mt-1 block w-full rounded-lg border-slate-300 shadow-sm focus:border-emerald-500 focus:ring-emerald-500">
+                <div>
+                    <label for="destination_url" class="block text-sm font-medium text-slate-700">Destination URL</label>
+                    <input type="url" name="destination_url" id="destination_url" value="{{ old('destination_url', $link->destination_url) }}" required
+                           class="mt-1 block w-full rounded-lg border-slate-300 shadow-sm focus:border-emerald-500 focus:ring-emerald-500">
+                </div>
+
+                <div>
+                    <label for="label" class="block text-sm font-medium text-slate-700">Label</label>
+                    <input type="text" name="label" id="label" value="{{ old('label', $link->label) }}"
+                           class="mt-1 block w-full rounded-lg border-slate-300 shadow-sm focus:border-emerald-500 focus:ring-emerald-500">
+                </div>
+
+                <label class="flex items-center gap-2 text-sm text-slate-700">
+                    <input type="hidden" name="is_active" value="0">
+                    <input type="checkbox" name="is_active" value="1" @checked(old('is_active', $link->is_active))
+                           class="rounded border-slate-300 text-emerald-600 focus:ring-emerald-500">
+                    Link is active
+                </label>
+
+                <button type="submit" class="rounded-lg bg-emerald-600 px-4 py-2 text-sm font-semibold text-white hover:bg-emerald-700">Save changes</button>
+            </form>
+        @else
+            <div class="rounded-xl border border-slate-200 bg-white p-6">
+                <p class="text-sm font-medium text-slate-700">Destination</p>
+                <p class="mt-1 text-sm text-slate-600">{{ $link->destination_url }}</p>
             </div>
-
-            <div>
-                <label for="label" class="block text-sm font-medium text-slate-700">Label</label>
-                <input type="text" name="label" id="label" value="{{ old('label', $link->label) }}"
-                       class="mt-1 block w-full rounded-lg border-slate-300 shadow-sm focus:border-emerald-500 focus:ring-emerald-500">
-            </div>
-
-            <label class="flex items-center gap-2 text-sm text-slate-700">
-                <input type="hidden" name="is_active" value="0">
-                <input type="checkbox" name="is_active" value="1" @checked(old('is_active', $link->is_active))
-                       class="rounded border-slate-300 text-emerald-600 focus:ring-emerald-500">
-                Link is active
-            </label>
-
-            <button type="submit" class="rounded-lg bg-emerald-600 px-4 py-2 text-sm font-semibold text-white hover:bg-emerald-700">Save changes</button>
-        </form>
+        @endif
     </div>
 </x-user-layout>