There are many things to consider when designing a demo for mobile. … As you build your app for Android or iOS, don’t carry over UI elements from JPG, use png deliberate files to build the layout of the design.
The UI demo design include
Panel and configuration
Demo Apk e.t.c.
Your App details and a reference app on the play store if available. Note: you can send your app details to firstname.lastname@example.org with your company details too.