iOS 11 controls to protect your data

Apple and other third-party apps and websites gather user location data to make Location Services work better. Apple Maps, Google Maps, and other mapping apps need location data to make recommendations, notify friends of your whereabouts, and more. But some users might not like every app on their phone having full access to their precise location.

To limit your phone’s location-data gathering, follow these steps:

Go to Settings > Privacy > Location Services (lists all the apps that obtain location info on your device)

Review the location access privilege of each app:

While Using - the app obtains location data only when it’s in use

Always - the app obtains data whether or not it’s in use, as in the case of Google Maps and the Weather app

Never - for apps that aren’t set up to obtain location data

Uncheck the apps set to Always that you don’t want to have full-time access to your location info

Deactivate access by swiping the button from right to left

click link to learn more

https://www.nexxentech.com/2018/03/ios-11-controls-to-protect-your-data/