Lock the screen after a interval of time
Screen Time is a simple app to lock the screen after a interval of time. Use it to limit kids screen time.
Print some "tokens", 1 token = 1 minute. Print in units of 5, 10, 20 and 30 units.
Hand out token for jobs done. 10 tokens morning jobs, cleaning up etc. Token are more valuable than money for children.
You need to set a pin as password to the unlock screen. Once activated cannot uninstall immediately
Set the screen time to the number of tokens taken from the jar.
Get the new Beta version https://play.google.com/apps/testing/com.arf.screenlock