Smartphones seem to be lasting longer these days. The average smartphone now lasts more than 9-and-a-half hours on our battery test, which is an hour longer than they did a little more than a year ago. Still, unless you've got a long-lasting smartphone like the Asus ZenFone 3 Zoom in your pocket, you're probably looking to squeeze more life out of a smartphone charge. To do so, you can turn to battery monitoring and power saving apps, which let you check the charge state of your phone and optimize device settings to reduce power usage. Check out 13 of our favorite Android and iOS battery monitoring and power-saving apps.
Battery Doctor (Android and iOS) is a free and feature-packed battery monitor and energy saving tool for mobile devices. Battery Doctor allows users to quickly look up battery charge status as well as track down what apps and processes are draining battery life. You can quickly toggle power-hogging settings from within the app and its widgets, such as brightness, Wi-Fi, GPS, Bluetooth and mobile data (though you should probably skip the Task Killer). A particularly useful feature is the ability to define power saving profiles and automatically schedule them, so that, for example, you can set the phone to automatically switch to airplane mode when you're asleep or in class.
Battery Saver 2017 is another app that combines a variety of battery-saving system features and settings to provide quick and easy profiles that should help extend your how long your phone lasts on a charge. The main screen displays battery life, a power saver mode switch, toggles for a variety of device settings and assorted battery stats and expected runtimes. In addition to the power-saving mode, a sleep mode deactivates most device radios, and a custom mode lets you configure a variety of settings for your own power use profile. Users can also schedule power-saving modes for particular times, like work, sleep and so forth.
Another popular battery monitor and power saving Android app is DU Battery Saver & Widgets, which comes with a convenient control widget and one-touch power optimization. The app comes with convenient smart presets for saving battery life, with the option to create user-defined modes, as well as a battery charge-state monitor and tools for viewing app power usage. A Pro upgrade unlocks more advanced features, such as the ability to schedule the power-saving presets, an automatic task killer and the option to tune the CPU frequency of rooted phones.
Avast's been expanding their mobile app offerings, and now include their own Avast Battery Saver to provide simple power-saving optimizations. The app features a background task killer, five configurable power consumption profiles (work, home, night, emergency and an adaptive smart mode), an app viewer, and notifications suggesting changes in profile. A neat touch is that each power profile comes with optional auto-triggers, such as connecting to particular Wi-Fi networks for Work or Home profiles, time of day for Night mode, or power level for Emergency power saving mode. It does feature a lot of ads for Avast apps and others.
Not to be left behind, Intel Security has also gotten into the game with Mobile Booster, an all-in-one battery saving and system cleaning app designed to help conserve power as well as clean up gunk slowing down your Android phone. A Quick Boost button applies a series of battery and memory tweaks, while users can dig down for more settings. A battery optimizer applies quick tweaks to save charge, with a quick bar allowing you to turn off Wi-Fi, Bluetooth and other settings; a memory manager and storage manager optimizer can kill apps to free up memory, along with a cache cleaner and app manager for clearing up device storage. It's an interesting all-in-one package for those looking for a battery saver and system cleaning tool in a single app.
Android users looking to get more crunchy details when it comes to their battery use might want to check out GSam Battery Monitor which provides a helpful "App Sucker" tool for quickly identifying which apps are using up your battery life. The App Sucker can show apps by battery use, but also allows you to dig deeper for CPU usage stats for sensor use, and app and kernel wakelocks. In addition to recent use stats, you can specify a time period to see your stats within that time frame, and you can also look up time estimates for your battery life based on your current and historical usage. A $2.49 pro edition adds tablet-optimized view modes and improves time-remaining estimates on devices with long standby times.
CM Battery Saver comes from the same team behind Clean Master and Battery Doctor. It boasts a simpler, more streamlined design, though configuration junkies might find it a bit on the lighter side. The app autodetects background apps and system settings that are potential power hogs, and then provides users with a checklist of apps to kill and settings to change. You can also whitelist apps that you want CM Battery Saver to ignore. In addition, the app comes with a battery charge indicator, use time, and temperature indicator that sits in your notifications tray.