Best Before is a script for making your application expire. It is useful when you want to release a demo application that should expire after some time. The script can close the application after some time from start, freeze it and execute custom operations.
NEW FEATURES:
It's now possible to set the expiration date from the first time the application/game was launched
Remote Date/Time check makes it possible to get current date and time using a reliable remote web server
OnQuit event management allows you to take care of last-second stuff before quitting the expired application
Compatible with any Unity version
More details about the package HERE