In the upcoming release; v1.1.2, of eduDroid you will now be able to Lock ANY app on the device as well as our recommended apps.
Under “Adult Mode”, you have an App Lock option, set a password and turn on.
Schools admins can use this in the same way, even if the Apps are not the same on the devices. Log on as admin on to the device and select the apps you want to block. Within 24 hours those apps will be blocked across your school.
Download from the Play Store Now: https://play.google.com/store/apps/details?id=uk.co.bigfishstudios.eduDroid