Ran[亂] means chaos,
This App will try to help you end the chaos of Android apps.

you can use it to:
1. kill Apps who keep running in background, even if you no longer use it.
2. frozen and hide app from main screen, so it will never running unless unfrozen.
3. uninstall boadware with out ADB connected computer.

How to use
1. enable adb https://developer.android.com/studio/command-line/adb#wireless
2. run "adb tcpip 5555"
3. open the App

you should redo this process when your device rebooted.

The magic behind Ran is very simple.
When ADB debug enabled, Android device have an adbd process running at background, which communicate to debug tools on connected computer so developer can control the device. Ran implement this protocol but instead run on compute run on the same device, make it able to control the device.

This ADB control channel have more privileges than ordinary Apps(but less than root privileges), So it can kill other apps, and do other things App can't do otherwise. And keep you device unrooted.

Compare to other similar tools,
eg: https://play.google.com/store/apps/details?id=com.catchingnow.icebox

Kan only talk to official adbd process, have no extra process running at background, which means there is zero cost when not use it.