Best task manager app for android. It clears ram, cache, temporary files, running apps, installed apps, residual files. It also installs a one touch task killer widget for quick cleaning. Install it for gods sake. Its free..
This is basically a simplified version of SD Maid for those users who want to rid their device of unnecessary files but don't quite have the advanced know-how required when using SD Maid. As with any root app use with caution!
If any of the "speed up your phone" apps haven't 100% improved your phone, this is the app you need. Cleans up your phone's cache, residual files (files left after uninstalling an app), and any large files/empty folders on your phone.