2) You can clean up your phone easily.
3) Clean unnecessary files that created by apps.
5) Check-up your battery, don't let it run out fast.
6) You can stop the apps that run in background.
7) You can clean and boost your RAM.
9) You can see your system information.

Yazdıklarım büyük oranda doğrudur. 1-2 maddeyi çevirmedim mobildeyim şuan.