The android app doesn't have an exit/stop/shutdown path. The app ignores android's back button, used by 99% of Android apps to exit, once they reach the landing page. On top of that, there is no dedicated close/exit button anywhere on the screen. Hence, I'm forced to minimize the app by using my android's home button, and then to kill it, by going to my android's settings->apps->recent->Paccto->Force Stop. Very bad UX.