Use APKPure App
Get Mobile App Prototyping old version APK for Android
Application helps prototyping all mobile apps
It converts user ideas for app development into prototype.
1) Design your own screen by using the components available for Android. iPhone and Windows mobiles
2) Design as many screens as you want and save them.
3) After completing all the screen designs generate a PDF.
4) The PDF file can be viewed and can be share with any clients.