This application is free. There is no advertisement. If a button is pushed, it does not sleep automatically. A button is displayed on a forefront side. A button can be pushed at any time. A setup of automatic "Termination time" is possible. The Long click the button A screen is locked. Operation is made impossible. Request.
Take the opportunity to get the installer of Screen Keep 2.8 free of charge and check out users' reviews on Droid Informer. The app is completely safe to download. Kazu Pinklady is the developer of this application which can be found in the Tools category.
Over 10K users downloaded and set up Screen Keep and the most recent update was on Jul 23, 2018. People rated the app 4 on Google Play.