Re: is there a 4g on off switch app for droid turbo
Welcome to Android Central! Do you mean a mobile data toggle, or a toggle to turn off 4G in favor of 3G?
If the phone's interface didn't come with a mobile data toggle in the Quick Settings swipedown, then any 3rd party toggle will only take you to the Mobile Data part of the settings menu, where you can then switch the system toggle on or off. I think starting with KitKat or Lollipop, developers lost access to the direct toggle.