Purify - Speed & Battery Saver is a productivity app that will help you close apps that are running in your background and consuming your battery. This way, you will be able to use your device longer. Closing background apps will also improve its speed and performance for a smoother operation and navigation. Of course, Purify will not just act on its own and just close your apps once launched. You will still get to decide which apps will be shut down during the process and you can do so by selecting them on the settings menu. Purify - Speed & Battery Saver is very useful especially for people who are prone to opening and using many apps.