diff --git a/app/build.gradle b/app/build.gradle
index 167eccd..6e7da8d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "org.secuso.aktivpause"
         minSdkVersion 21
         targetSdkVersion 34
-        versionCode 11
-        versionName "1.2.2"
+        versionCode 13
+        versionName "1.2.3-google"
         vectorDrawables.useSupportLibrary = true
     }
     buildTypes {
diff --git a/app/src/main/java/org/secuso/aktivpause/GoodbyeGoogleHelper.kt b/app/src/main/java/org/secuso/aktivpause/GoodbyeGoogleHelper.kt
new file mode 100644
index 0000000..d7c52ab
--- /dev/null
+++ b/app/src/main/java/org/secuso/aktivpause/GoodbyeGoogleHelper.kt
@@ -0,0 +1,38 @@
+package org.secuso.aktivpause;
+
+import android.content.Context
+import android.graphics.text.LineBreaker
+import android.os.Build
+import android.preference.PreferenceManager
+import android.text.method.LinkMovementMethod
+import android.view.LayoutInflater
+import android.widget.CheckBox
+import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+
+fun checkGoodbyeGoogle(context: Context, layoutInflater: LayoutInflater) {
+
+    val showNotice = PreferenceManager.getDefaultSharedPreferences(context).getBoolean("show_goodbye_google_notice", true);
+
+    if (showNotice) {
+        val view = layoutInflater.inflate(R.layout.dialog_goodbye_google, null, false)
+        view.findViewById<CheckBox>(R.id.show_notice_checkbox).apply {
+            setOnClickListener {
+                PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean("show_goodbye_google_notice", !isChecked).apply()
+            }
+        }
+        val dialog = AlertDialog.Builder(context)
+            .setView(view)
+            .setNeutralButton(android.R.string.ok) { _, _ -> }
+            .setCancelable(false)
+            .create()
+
+        dialog.show()
+        dialog.findViewById<TextView>(R.id.text)?.apply {
+            movementMethod = LinkMovementMethod.getInstance()
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                justificationMode = LineBreaker.JUSTIFICATION_MODE_INTER_WORD
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/secuso/aktivpause/activities/ManageExerciseSetsActivity.java b/app/src/main/java/org/secuso/aktivpause/activities/ManageExerciseSetsActivity.java
index 1ab162a..fc86fb9 100644
--- a/app/src/main/java/org/secuso/aktivpause/activities/ManageExerciseSetsActivity.java
+++ b/app/src/main/java/org/secuso/aktivpause/activities/ManageExerciseSetsActivity.java
@@ -34,6 +34,7 @@ import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import org.secuso.aktivpause.GoodbyeGoogleHelperKt;
 import org.secuso.aktivpause.activities.tutorial.FirstLaunchManager;
 import org.secuso.aktivpause.exercises.ExerciseLocale;
 import org.secuso.aktivpause.R;
@@ -76,6 +77,7 @@ public class ManageExerciseSetsActivity extends BaseActivity implements LoaderMa
 
         initResources();
         getSupportLoaderManager().initLoader(0, null, this);
+        GoodbyeGoogleHelperKt.checkGoodbyeGoogle(this, getLayoutInflater());
     }
 
     private void initResources() {
diff --git a/app/src/main/java/org/secuso/aktivpause/activities/TimerActivity.java b/app/src/main/java/org/secuso/aktivpause/activities/TimerActivity.java
index 0f3c4ce..451c9f9 100644
--- a/app/src/main/java/org/secuso/aktivpause/activities/TimerActivity.java
+++ b/app/src/main/java/org/secuso/aktivpause/activities/TimerActivity.java
@@ -32,6 +32,7 @@ import android.widget.Spinner;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import org.secuso.aktivpause.GoodbyeGoogleHelperKt;
 import org.secuso.aktivpause.activities.tutorial.FirstLaunchManager;
 import org.secuso.aktivpause.exercises.ExerciseLocale;
 import org.secuso.aktivpause.R;
@@ -136,6 +137,7 @@ public class TimerActivity extends BaseActivity implements LoaderManager.LoaderC
         }
 
         getSupportLoaderManager().initLoader(0, null, this);
+        GoodbyeGoogleHelperKt.checkGoodbyeGoogle(this, getLayoutInflater());
     }
 
     @Override
diff --git a/app/src/main/res/drawable/dialog_border.xml b/app/src/main/res/drawable/dialog_border.xml
new file mode 100644
index 0000000..791ba04
--- /dev/null
+++ b/app/src/main/res/drawable/dialog_border.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
+    <solid android:color="@android:color/transparent" />
+    <stroke android:width="4dp" android:color="#880000"/>
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_goodbye_google.xml b/app/src/main/res/layout/dialog_goodbye_google.xml
new file mode 100644
index 0000000..262993d
--- /dev/null
+++ b/app/src/main/res/layout/dialog_goodbye_google.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingHorizontal="32dp"
+    android:background="@drawable/dialog_border"
+    android:padding="16dp">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:src="@android:drawable/ic_dialog_alert"
+            xmlns:app="http://schemas.android.com/apk/res-auto"
+            app:tint="@color/red"/>
+        <com.google.android.material.textview.MaterialTextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/dialog_goodbye_google_title"
+            android:textStyle="bold"
+            android:textSize="16dp"
+            android:layout_gravity="center"
+            android:padding="8dp"
+            />
+    </LinearLayout>
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/text"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/dialog_goodbye_google_desc"
+            />
+    </ScrollView>
+    <com.google.android.material.checkbox.MaterialCheckBox
+        android:id="@+id/show_notice_checkbox"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/dialog_goodbye_google_deactivate_notice"
+        />
+</LinearLayout>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 1f79287..890e627 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -177,4 +177,8 @@
     <string name="dialog_evaluation_yes">Ja</string>
     <string name="menu_display_evaluation_dialog">Online-Befragung</string>
 
+	<string name="dialog_goodbye_google_title">Wir verlassen Google Play 😢</string>
+    <string name="dialog_goodbye_google_desc">Unsere Apps müssen sich leider von Google Play verabschieden. Die App ist weiterhin nutzbar, erhält jedoch keine Updates mehr.\nWeitere Informationen zu den Gründen und warum das nicht das Ende der Privacy Friendly Apps ist, finden Sie auf unserer Website:\n\n<a href="https://secuso.aifb.kit.edu/2809.php">Hier klicken, um mehr zu erfahren</a>
+    </string>
+	<string name="dialog_goodbye_google_deactivate_notice">Zeige diese Mitteilung nicht nochmal</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d8f2d44..c4d68ea 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -170,4 +170,8 @@
     <string name="menu_display_evaluation_dialog">Online Evaluation</string>
 
 
+	<string name="dialog_goodbye_google_title">Goodbye Google Play 😢</string>
+    <string name="dialog_goodbye_google_desc">Unfortunately, our apps have to say goodbye to Google Play. The app is still usable but will not receive any updates in the future.\nYou can find more information about the reasons why this is not the end of the Privacy Friendly Apps on our website:\n\n<a href="https://secuso.aifb.kit.edu/english/2809.php">Click here to learn more</a>
+    </string>
+    <string name="dialog_goodbye_google_deactivate_notice">Don\'t show this notice again.</string>
 </resources>