diff --git a/README.md b/README.md
index fcf4c6e..7becf5b 100644
--- a/README.md
+++ b/README.md
@@ -47,3 +47,14 @@ Run this script in project root to create apk
 ```batch
 Usage: ./scripts/version_and_changelog.sh
 ```
+
+## Build apk
+
+Run this script in project root to create apk
+
+```batch
+Usage: ./scripts/build_app.sh [android|ios|both]
+  android - Build only the Android APK
+  ios     - Build only the iOS IPA (macOS only)
+  both    - Build both Android APK and iOS IPA (macOS only)
+```