AppShut allows you to close all running apps and, consequently, free up memory, save battery life and increase the speed of your phone. This app requires permission to draw over the other apps in order to show the standby screen while closing the apps.
* Close running apps
* Exception list: select the apps you want to keep running
* Supports user apps and system apps.
* Task Killer
* Battery saver
* Memory Cleaner
* CPU Cooler
* Speed booster
Supported Android Devices : [4.4–4.4.4] KitKat – [5.0–5.0.2] Lollipop – [6.0 – 6.0.1] Marshmallow – [7.0 – 7.1.1] Nougat – [8.0-8.1] Oreo –  Pie