KeepOn is a free and open-source (FOSS) Android app developed by TwentyNine78. It falls under the category of Utilities & Tools and is designed to keep your device's screen on for the desired duration. The app also offers the option to automatically return to the default settings when the screen turns off.

One of the standout features of KeepOn is its adaptability to your device's configuration, making it easy to use. Additionally, the app integrates with Tasker/Locale, allowing you to access KeepOn functions from other compatible applications.

KeepOn is completely free and does not contain any ads or tracking features. It also does not require an internet connection, ensuring a seamless user experience.

Permissions required by KeepOn include WRITE_SETTINGS, which is needed by Android to modify screen timeout settings, and FOREGROUND_SERVICE, which is necessary to detect screen off events and other screen timeout modifications.

Overall, KeepOn is a reliable and user-friendly app for keeping your device's screen on, and its integration with Tasker/Locale adds to its versatility.