diff --git a/.vscode/launch.json b/.vscode/launch.json
index 76dc08d5..efdaa6ea 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -28,6 +28,19 @@
             "request": "launch",
             "projectPath": "${workspaceFolder}/src/PostIt/PostIt.Desktop/PostIt.Desktop.csproj",
 
+        },
+        {
+            "name": "Test PostIt.Android launch (Xamarin.UITest)",
+            "type": "coreclr",
+            "request": "launch",
+            "program": "${workspaceFolder}/src/PostIt.Tests/bin/Debug/net10.0/PostIt.Tests.dll",
+            "args": [
+                "--filter-method",
+                "PostIt.Tests.AndroidAppLaunchTests.PostIt_starts_and_draws_a_first_frame_on_the_emulator"
+            ],
+            "cwd": "${workspaceFolder}/src/PostIt.Tests",
+            "console": "integratedTerminal",
+            "stopAtEntry": false
         }
     ]
 }
diff --git a/src/PostIt.Tests/AndroidAppLaunchTests.cs b/src/PostIt.Tests/AndroidAppLaunchTests.cs
new file mode 100644
index 00000000..2198bb78
--- /dev/null
+++ b/src/PostIt.Tests/AndroidAppLaunchTests.cs
@@ -0,0 +1,76 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using Xamarin.UITest;
+using Xamarin.UITest.Android;
+using Xunit;
+
+namespace PostIt.Tests;
+
+/// <summary>
+/// Smoke test: launches the installed PostIt.Android app on the running
+/// emulator and waits for the first Avalonia frame to render. Reveals the
+/// "démarrage KO" bug — the test fails if Avalonia never draws a frame
+/// within the timeout.
+///
+/// Skip conditions: the package is not installed on the connected device,
+/// or no device is connected via adb.
+/// </summary>
+public class AndroidAppLaunchTests
+{
+    private const string PackageName = "com.CompanyName.PostIt";
+
+    private readonly ITestOutputHelper _output;
+
+    public AndroidAppLaunchTests(ITestOutputHelper output)
+    {
+        _output = output;
+    }
+
+    [Fact]
+    public void PostIt_starts_and_draws_a_first_frame_on_the_emulator()
+    {
+        if (!IsPackageInstalledOnAnyDevice())
+        {
+            _output.WriteLine($"[skip] {PackageName} not installed on any device");
+            return;
+        }
+
+        _output.WriteLine($"[step] configuring app via InstalledApp({PackageName})");
+        var app = ConfigureApp.Android
+            .InstalledApp(PackageName)
+            .StartApp(Xamarin.UITest.Configuration.AppDataMode.DoNotClear);
+        _output.WriteLine("[step] app.StartApp returned, waiting for first frame");
+
+        app.WaitForElement(
+            e => e.Class("android.view.View"),
+            timeout: TimeSpan.FromSeconds(30));
+        _output.WriteLine("[step] first frame observed");
+    }
+
+    private static bool IsPackageInstalledOnAnyDevice()
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo("adb", "shell pm list packages")
+            {
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                UseShellExecute = false,
+                CreateNoWindow = true,
+            };
+            using var proc = Process.Start(startInfo);
+            if (proc is null) return false;
+            var stdout = proc.StandardOutput.ReadToEnd();
+            proc.WaitForExit(5000);
+            return stdout
+                .Split('\n', StringSplitOptions.RemoveEmptyEntries)
+                .Any(line => line.Trim().Equals($"package:{PackageName}", StringComparison.Ordinal));
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}
diff --git a/src/PostIt.Tests/Directory.Packages.props b/src/PostIt.Tests/Directory.Packages.props
index 15c4e24b..4731d4f0 100644
--- a/src/PostIt.Tests/Directory.Packages.props
+++ b/src/PostIt.Tests/Directory.Packages.props
@@ -1,10 +1,10 @@
 <Project>
   <!-- Pull in shared package versions from the repository root. -->
   <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Packages.props', '$(MSBuildThisFileDirectory)../'))" />
-
   <!-- PostIt.Tests-specific versions -->
   <ItemGroup>
     <PackageVersion Include="Avalonia.Headless" Version="12.0.4" />
     <PackageVersion Include="Avalonia.Headless.XUnit" Version="12.0.4" />
+    <PackageVersion Include="Xamarin.UITest" Version="4.4.2" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/PostIt.Tests/PostIt.Tests.csproj b/src/PostIt.Tests/PostIt.Tests.csproj
index 54c40e8c..249e3d92 100644
--- a/src/PostIt.Tests/PostIt.Tests.csproj
+++ b/src/PostIt.Tests/PostIt.Tests.csproj
@@ -13,6 +13,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
+    <PackageReference Include="Xamarin.UITest" />
     <PackageReference Include="xunit.v3" />
     <PackageReference Include="xunit.runner.visualstudio" />
     <PackageReference Include="coverlet.collector" />