This is the key to show your support in Battery Overlay Percent. You're strongly encouraged not to purchase this for any modern phone. Google/Android 8. 0 or greater completely broke ability for 3rd party apps to overlay on status bar. This app has been discontinued due to Android changes.
Download the installation package of Battery Overlay Percent Key 1.0 that is free of charge and take a look at users' reviews on Droid Informer. The app is designed for Android 2.1 and above. This application is completely safe to download. Tal Aviram is the creator of Battery Overlay Percent Key that can be found in the Tools category.
The latest release was on Jan 7, 2014 and the app was downloaded and set up by over 1K users. This application has the average rating 4.3 on Google Play.