Battery Doctor is an app that monitors your iPhone's battery, helping you adjust various apps and settings to make your battery last as long as possible.
Optimize your battery
With Battery Doctor, you can get detailed information about the remaining percentage and subsequent time you have left before your battery dies, as well as how much time you can spend using each app before your battery drains. If you want to use YouTube, for example, you'll be able to use if for much less time than if you're planning to make a phone call. It'll also show you what to turn off to extend your battery, including Wifi, GPS, and screen brightness.
One of the best features of the app is that it tell yous exactly how much battery power each app you have installed is using, separated into categories by the apps that are currently running, apps that aren't running, and system apps. By clicking on the four boxes in the top right of the screen and then on Discharge Rank, you can see a list of the apps that use up the most battery power.
If you run Battery Doctor while you're charging your phone, you can get a history of you're phone's daily charges to see if your battery health is improving.
You can even get a bit more advanced and check the CPU, hard disk, and memory usage on your phone, although the accuracy of memory usage isn't always reliable.
Battery Doctor is super easy to navigate. All the options are really clear, and playing around with it for just a few minutes will tell you almost everything you need to know about using the app. The interface is really clean, and its pretty easy to find what you're looking for.
There are different menu options at the bottom of the screen including Status, Charge, Memory, Junk and Market, which is just a separate marketplace for apps that's links to the App Store. Under Charge, you'll see how much time you need to fully charge your phone, as well as a health score for your battery. Junk helps you clean the cache for apps that you may not be using.
Call the Doctor
If you suffer from a constantly draining phone battery, Battery Doctor is a really useful utility that'll help you gain control over your phone and stretch out your battery's life for as long as possible.