This app is pretty helpful if your headset buttons was broken.

Why use this app?

App require minimum resources. hence no battery draining or device hanging problem.
Easy to understand and use.
No root required.
You can drag and move button in all over screen.
This On Screen Keys serving you continue.. even if you clear if from your back-stack(Recent Screen)

This app works on Accessibility Service , so you need to turn on Accessibility Service to get benefit of this app. Do not worry how to unable accessibility service start. Application Automatically guides you to do so.

If need any Assistance, Please mail to [email protected] or comment below.