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.
chitchat - Chat Room with Selfies and Pagers (yes, pagers!)
Accubattery - Monitor's battery capacity through the use of science
Chalk - Chalk is a calculator that tries to do right what others do wrong.
Power Battery - Power Battery, as the most professional battery saver app, could get up about 60% more battery life for Android phones or tablets.
Twist - Check fewer notifications, do more meaningful work. Twist is the team communication app for calmer, more organized, and more productive teamwork.