No matter what version of Google's mobile OS you're running — we're up to Android Oreo on many devices with Android 9 Pie appearing on newer phones like the Galaxy S10, Pixel 3 and OnePlus 6T — Android remains a tinkerer's dream. Because Android is open in a way that other mobile OSes aren't (looking at you, iOS) you can tweak and optimize the system's performance from A to Z. Whether we're talking cache cleaners, junk file hunters, CPU overclocking tools, app disablers or task automation tools, plenty of Android apps help you get more out of your phone. Here are 20 of our favorites. (Image Credit: Shutterstock)
Cheetah Mobile's Clean Master comes with a Junk Files tool for cleaning your phone's app and system cache as well as temp files. It also sports a memory-saving Phone Boost tool, an app manager and antivirus feature. While you can probably skip the task-killer-like features of Phone Boost, the Junk File tool is great at cleaning out widowed and temporary files, as well as cleaning out your system cache to free up phone storage. The app manager allows users to backup APKs, move apps to the SD card and uninstall apps. There are also a lot of extras like an app lock, game mode, and a private photo locker.
All-in-One Toolbox is just that: a versatile all-in-one Android booster app. AIO Toolbox follows the model of many apps with a quick one-tap booster that cleans up cache, background apps, and memory; it also includes extras like an app manager, file manager, and CPU cooler (which kills background apps to reduce load). A handy "Easy Swipe" brings up a radial menu to quickly access utilities from your home screen or other apps. Where the app does suffer a mite bit is in organization, with tools split across a vertical feed and multiple tabs.
The Cleaner does exactly what it says on the tin: it's a cleaning and optimization app that works in a variety of tweaks into a single handy package. You'll find a memory optimizer, storage cleaner, app manager and game mode optimizer all rolled into one. The memory booster can be used to free up RAM and terminate unwanted processes, while the storage cleaner sifts through your phone for items that you can afford to delete to save some space, such as APKs, app caches, and other potentially junk files. The app manager lets you sort through your installed apps with a variety of filters and batch uninstall them; scheduled reminders can be set to regularly clean your device. An in-app purchase removes advertising.
As mobile computing becomes a bigger part of everyday life, leisure and productivity, mobile device security becomes more and more important. Norton is a trusted old name in the PC antivirus field, and it's also branched out with a freemium Android antivirus app. Norton Security and Antivirus provides reliable antivirus and anti-malware protection, and combines the package with a variety of anti-theft and 'find my phone' tools. A premium subscription unlocks extra security tools such as an App Advisor and Privacy Report that assesses the risks your apps may pose; there's also SafeWeb filtering. It's a great addition to your Android utilities, even with its system impact. Check out our in-depth look for more details.
If you're willing to go straight to premium solutions for protecting your mobile device from malware and other security threats, check out BitDefender Mobile Security & Antivirus, our pick for the best Android antivirus app. BitDefender Mobile provides top-notch antimalware protection, with its scanning engine reliably scoring high in yearly tests, while app & web protection automatically scans new apps and visited websites for possible security threats. BitDefender also throws in some useful extras like a VPN, anti-theft features, a PIN or fingerprint-protected App Locker, and an Account Privacy tool for finding potential threats involving your email address.
Ashampoo's an old standby when it comes to PC utilities, and the German software company has since branched out to develop mobile utility apps as well. Droid Optimizer is an all-in-one system optimization app that can be set for quick use, or for more detailed cleanup. A 1-Touch Speed Up mode can be set to clean the memory cache and stop background apps (with an optional whitelist), while a more selective Clean Up mode lets you go point by point. An App Manager lets you bulk uninstall apps or view permissions, while a Privacy Advisor flags apps with that have been granted permissions that might be abused for your review. There's even a handy automatic scheduling mode to automate cleanup or disable Wi-Fi at night.
GO Speed by the GOMO team offers a familiar suite of memory and storage cleaning tools, with a Memory Boost tool to try to reduce RAM load by killing tasks in the background, a Junk File cleaner for clearing out app caches and other possible space hogs, an App Manager and App Lock. A sidebar conceals additional tools such as a Battery Saver, Game Booster, CPU Cooler, Duplicate Photo finder, and a notification cleaner.