App Lock Advanced Protection, App Lock v1.58 required.
Please download app lock first. https://play.google.com/store/apps/details?id=com.lock.appslocker
After install this app, you need enable "Uninstall Prevention" in Settings of app lock.
When you enable "Uninstall Prevention" , nobody can kill or uninstall app lock without password.
9Apps 4.9
