Greenify - Greenify is a mobile app that gives you greater control over your Android device's power usage, allowing you to get a lot more mileage out of your battery life without having to constantly plug it back into a charger.

Clean Temporary Places - Clean Temporary Places is a cleaning tool that lets you clean temporary files to free up some space on the disk and get rid of disk error, disk defragmentation, etc.

DU Battery Saver - DU Battery Saver, get up to 50% more battery life for your Android phone. Battery Saver learns how you use your phone, then creates smart profiles that match your settings to your needs while getting more life from your battery.

Sweeper - KDE is an open community of friendly people who want to create a world in which everyone has control over their digital life and enjoys freedom and privacy.

Accubattery - Monitor's battery capacity through the use of science

OS Cleaner - Clean your Operating System from all the garbage wasting space that slows the performance of your...