I am developing an app for my final degree project and I have a particular problem; in the simulator of Android Studio the app runs without problems, however, when I try the same app on my phone it does not run well, I've tried it on several models and they have the same problem.
The app has a counter that is discounting from a given time (00:01:30) in hh: mm: ss format, until it reaches zero (00:00:00), in the simulator it reaches zero but in the phone is stopped at the last second (00:00:01).
Does anyone know why? I enclose the application in .rar for you to try. link