This application is used to delete or disable gapps. It uses a regex to find GApps package - pm disable xxx (xxx is a package name that is found by the application) or - rm -rf xxx (xxx is a path name that is found by the application) It requires root to work. Don't delete GApps on touchwiz (or similar) stock rom or your device might not boot afterwards. You should try to disable GApps instead! To re-enable GApps, go to the *Settings › Apps* menu, and chose "restore apps preferences". If you want to reinstall GApps, you should use the OpenGApps zip or GApps installer (third party apps).