Quick Battery has been discontinued. Similar apps include Battery Widget. Other options are Battery Master and Sleepy Battery. In total there are three Battery Monitors like Quick Battery for iPhone, iPad, Mac and Android.
Track batteries of iPhone, iPad, Apple Watch and Mac on every device. Battery levels sync over internet. Low-battery notifications. Share battery with friends and family.
Need to know how long you can watch your movie on your iPod? Wanna estimate how long you can talk over your mobile network? Or some times you need to make sure the battery left is enough for finish the game play for the next level...
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Turn off interfaces draining your battery life; it detects when your phone is idle and then it can power off:
