How do I make a server always have the most current model of my Android app, and whenever a user logs into the app, does the server pull the information and files from the app, and compare it to the server model? If everything is ok, the server allows you to login. If any files are corrupted or modified. The app runs a self-healing system, updating those files and restarting them.
I believe that apps that use Unreal Engine 4 have this feature. I want to know how it works, too.