Backlight Manager is a utility application that allows users to keep their Android phone screen and keyboard backlight on permanently. The app has a simple user interface with options to enable or disable the feature, and to customize the brightness level. It also includes a management widget for easy access.

With Backlight Manager, users can enable or disable the backlight based on certain conditions such as when the DC cable is plugged or unplugged, or when the battery level is too low. The app also allows users to show or hide notifications and start on boot if necessary.

Overall, Backlight Manager is a useful tool for those who need to keep their screen on for extended periods of time without constantly tapping the screen. The app is free and does not contain any ads, making it a great option for users who want a simple and straightforward solution to their backlight needs.