scratch junior has an app, so why not scratch? scratch is a bit hard to use sometimes while using my phone, because I keep accidentally pressing and dragging things (though it may be because of my fat fingers lol). you could make the blocks simpler and easier to click and move. you could also log in and comment while using the app. it could be called “Scratch”, “Scratch Edu.”, or “Scratch Coding”. also, instead of adding sound files, maybe you could just add sound from videos on your device. scratchers, what do you think?

The app only exists on Android Tablets, and there used to be this:
Scratch Viewer

Also, it has been suggested for iOS:
https://scratch.mit.edu/discuss/topic/2052/

It already exists for desktop, and for Android tablets too.