Use location services and GPS
You can let your phone use GPS, Wi-Fi networks and mobile networks to estimate your location. Apps that have your permission can use this information to deliver location-based services, such as the ability to check in, view commute traffic, find nearby restaurants or tag your photos with the location where you took them.
You'll see 
in the status bar when any app is using your precise location.
To control what location information your phone can use:
- Go to Settings > LOCATION.
- Turn it on or off to give or remove permission to use your location information. When it is turned off, your phone won't be able to find your precise location or share it with any apps. However, turning this off disables many useful features and apps.
Touch Mode and choose how to estimate your location:
- High accuracy uses GPS, Wi-Fi, mobile networks and Google's location service to get the most accurate location.
- Battery saving uses less battery-intensive location sources (Wi-Fi, mobile networks and Google's location service).
- Device only uses GPS only. This mode may use more battery power and take longer.
Apps using your location
To see which apps have recently accessed your location:
- Go to Settings > LOCATION.
- Under RECENT LOCATION REQUESTS, review the list of apps that have recently received your location. Each app shows whether it uses high-battery use or low-battery use sources to receive location information.
- To uninstall one of the apps or change its settings, touch the app in the list.