To turn location services on or off:
Leave the Instagram app and go to your iPhone’s Settings
Tap Privacy > Location Services
Scroll down and tap Instagram
Select Never or While Using the App to choose location access
Find “Location Services” Press Privacy. Press Location Services.
Turn GPS on or off. Press the indicator next to “Location Services” to turn the function on or off. If you turn off the function: …
Turn use of GPS position for applications on or off. Press the required application.