A free program for Android, by LuuTinh Developer.

Assistive Touch – Control your phone with the ultimate touch experience, now on your Android phone. This app is the best option to get the most out of your Android device, by allowing you to customize the user interface and add various functions that were previously unavailable.

Assistive Touch is a powerful tool that will help you to utilize your phone to its full potential and give you a lot of freedom in how you can use it. This app can be easily customized by the user and will give you complete control over the user experience. The best thing about this app is that it is extremely easy to install and use.