Never tried Greenify. But the two I've seen close apps in a forcible manner that Android cannot distinguish from a buggy app that crashes repeatedly when restar

Never tried Greenify. But the two I've seen close apps in a forcible manner that Android cannot distinguish from a buggy app that crashes repeatedly when restarted. Then Android revokes the app's right to (re)start itself. The user retains that right. But the app cannot e.g. schedule anything to be run next time the phone is on WLAN, or next time the battery is being charged.