Choose which apps and system services can use Location Services
Step 1
Choose the Apple icon on the menu
Then go to the System Settings, and from there click Privacy & Security in the sidebar.
Step 2
In the System Settings menu toggle Location Services on or off for each app to that you would like to restrict or grant access.
If you turn off this setting on an app, the next time it tries to get your location it will prompt you to turn it back on.
For more details go to the Apple support page