Only Back Button - Single touch back button

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★ Some critical bugs fixed for all devices.
★ Revamped UI.
★ Added customization options.
★ Added option for ad-free version.
★ Bug fixes for Android 4.4 which created the app to force close on starting the back button.
★ Only Back Button.
If the physical buttons of your phone can not work properly, Only Back Button can continue work your phone with simulating same as system back button.
★ Set position of button where your want.