Use APKPure App
Get Screen Saver Blocker old version APK for Android
If you need your phone stay awake, launch this app!
If you have any reason to not let your phone fade screen and go to sleep, launch this app and you'll get what you want. Press START to start blocking Screen Saver or STOP to stop it.
Note: If there would be a Low Memory situation, operation system will kill Screen Saver Blocker, in that case simple launch it again.