iOS - Toggle Location Services
This document explains how to turn on or off the location services on an Apple device.
1. Open the Settings app.
2. Tap Privacy.
3. Tap Location Services.
4. To toggle on or off, just tap the switch next to Location Services.
5. To select which applications you would like to be able or not able to access your GPS location, select each app one-by-one and set ALLOW LOCATION ACCESS to Never or While Using the App.