Vsmart Phone Keeper is a free Android app that helps you take care of your device with features that free up storage space, boost your phone's speed, manage power consumption, and protect your phone from security threats.

The app helps you clean up your phone storage by clearing cached files, residual files, and installation files. It also scans your phone storage to find large files and duplicate files and discover unused apps. Vsmart Phone Keeper also helps you manage your device's memory by quickly stopping background apps and restricting apps running in the background to save memory for smoother performance.

In addition, Vsmart Phone Keeper helps you manage battery usage with its diagnostic feature and battery saver. The app also scans your phone to detect suspicious activity, monitors network connection and data traffic, and scans newly installed apps. It even automatically scans your device after restarting.

Overall, Vsmart Phone Keeper is a useful tool for Android users who want to keep their devices running smoothly and securely.