For those of you who are looking for a very useful application for your Android phone, I suggest you use the ZDBox. This application is very useful to treat and analyze your Android device. In one application, there are some important tools such as:

Do Not Disturb: if do not want to be disturbed at certain times, use this application to set the airplane mode or silent.

Task Killer: Android slow? Use this application to terminate the unused applications that are running.

Cache Cleaner: remove and clean the phone with a fast cache.

Battery Info: prediction of how long the battery can last. Although sometimes not accurate, the tool is still useful.