Screen On is a very useful app for people who need to keep their phone screen on all the time. There are several options for you to adjust the brightness. 

It is designed to be used with any Android device. If you don't have the latest version of Android, then you will not be able to use this application. 

You will not need to download anything else. All you need is to download the app, install it and start using it.

The application has a simple and intuitive interface, so it will be easy to use. You can adjust the brightness with a simple touch. 

You can also set the screen timeout.