Have created an Android app for a business that will be used by approx 10 users in various states. The app was initially set up on android tablets and sent to the users. I am currently trying to use Google Drive to distribute app updates to the users with mixed success. When sending an update, some users get the ‘Open’ button that will install the update and some users do not get this option - just a screen that says ‘No Preview Available’’… Have tried to Google for info on this but find the help for Google Drive very vague.
Has anyone had similar problems and can point me in the right direction to fix this problem OR are there better options to handle distribution of updates (but not through Google Store).