I am a newbie and have just created an Android app to upload into the PlayStore.
I have followed instructions from here.
But I have few questions: Currently I am using my phone to test the app, but can I assume it will work as seamlessly on other phones of different brands as they may have different UIs?
After I upload the apps, do I know who have installed my app like email ID so that I could send them emails regarding new apps in the future or updates available in PlayStore or I must depend on Google Playstore notifications for this?