diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 23c4940..fed99b1 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -26,3 +26,30 @@ jobs:
       run: cd map-sample && ./gradlew build
     - name: Build navigation-sample with Gradle
       run: cd navigation-sample && ./gradlew build
+    - name: Calculate map-sample APK size difference
+      id: size-diff-map
+      uses: jacobras/size-diff-action@v2
+      with:
+        path: map-sample/app/build/outputs/apk/release/app-release-unsigned.apk
+    - name: Comment map-sample size difference on PR
+      uses: marocchino/sticky-pull-request-comment@v2
+      with:
+        header: size-diff-map
+        message: |
+            ### APK diff: `map-sample app-release-unsigned.apk`
+            
+            ${{ steps.size-diff-map.outputs.summary }}
+    - name: Calculate navigation-sample APK size difference
+      id: size-diff-navigation
+      uses: jacobras/size-diff-action@v2
+      with:
+        path: navigation-sample/app/build/outputs/apk/release/app-release-unsigned.apk
+    - name: Comment navigation-sample size difference on PR
+      uses: marocchino/sticky-pull-request-comment@v2
+      with:
+        header: size-diff-map
+        message: |
+            ### APK diff: `navigation-sample app-release-unsigned.apk`
+            
+            ${{ steps.size-diff-navigation.outputs.summary }}
+