Smart Task Killer Pro
If you want to optimize the performance of your Android device with as little effort as possible, Smart Task Killer Pro is the tool of choice. No other program is as easy to use as Smart Task Killer Pro. With one tap, you can get more available storage space by clearing cache / data files with this convenient app. You can also easily terminate threatening processes and programs or release memory occupied by listed processes.
Use this app as a widget-like shortcut on your home screen. For convenience, you can even add an icon of the application to your launcher. No root permission required.