Above is my app link which is published on playstore, im having issue with login now after i published it, before whenever i export apk Login system was working fine i tried dozen of times before,
but now after publish i downloaded my app in 3 4 mobiles but im stuck on login screen.
I have used firebase authentication system to simply login with gmail.
By seeing your apk and post , it is highly impossible to help.
We need your blocks or aia?
Check yourself one by one if not.
If you are using firebase, check in the designer mode whether project bucket is there or not. If it is there, make sure it is correct or not as per your structure. If it is no need clear it and try