Root Booster 4.0.3

Root booster is for root users who need more performance to run applications smoothly without lags or for those who need to improve a poor battery life

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There are many apps that save battery or increase performance, however Root Booster uses the most proven settings to achieve the best results. You can easily apply these settings with preset modes which ensure speed boost, battery boost or stability boost. These modes are achieved by applying appropriate settings to the main phone components. Here are some explanations for what particularly Root Booster does to your CPU, RAM and Android OS system.

Hibernation (Android OS optimizer)
Each Android application can have one or multiple services. They run in the background and usually perform some kind of task. Many people think that when they kill an application, it completely stops draining your battery and computing power, but that's not true. Application still have services that are running after killing and still drains battery and computing power. On the other hand, if you hibernate an application it stop it's services and application does not drain battery and CPU computing power anymore. Hibernation is gently and efficient way to save your battery and increase performance.
Root Booster will find battery draining and performance demanding applications and auto hibernates them.

CPU (processor governor control)
A governor is a driver for the regulation of CPU frequency. Governor decides how fast and when will be achieved maximal or minimal CPU frequency. Setting appropriate governor makes your device more battery saving, fast or even more stable. However, deciding which governor is suitable is a little bit tricky.
Root Booster can decide which governor you should use and automatically applies the most suitable governor for the selected mode.

RAM (memory manager)
Each application uses VM heap for it 's data and work. The main reason to change the VM heap size is stability improvement. Many big applications need a big amount of memory (VM heap) for their work. If the VM heap size is smaller than the requested memory, it causes an application crash (Out of memory error). Setting heap size is hard task and there is no manual to set up for better performance. Better performance can be only achieved by testing.
Root booster will test your RAM and sets up your VM heap size for better stability and performance.

New version for non-rooted users

System Cleaner
Cleans empty folders, gallery thumbnails and uninstalled apps trash to speed up
your device and free up your storage.

Hibernation
Hibernation disables and freezes apps running in the background to improve battery life
and purify your device.

Cache Cleaner
Each app creates unnecessary files that use your SD card or internal storage
space. Removing cache files by one tap to free up space helps you to reclaim
storage and optimize and speed up your Android system.

Disclaimer: Root Booster is proved by thousands of users and have the auto backup system, but we do not have responsibility for damaging your device.