it is possible to update my app on play store and app Store with different app with same design and purpose?

Question

I have an flutter app already launching on play store and apple store but it so bad for Editing because there architecture is bad what I want is recreate its app from zero then updating my old app to new app, it is possible?

NOTE: old app have a key

Answer 1

I think everything comes down to bundle identifier: com.example.something.

you can test with simple hello app and see.