Photos not geotagging on iPhone 6

Greetings, Mr.A..

It appears that the photos you're taking with your iPhone 6s isn't adding a location, even when location services is set to "While Using the App". I'm happy to help.

Restart your iPhone, iPad, or iPod touch -- First tap Settings > Privacy > Location Services > Camera. If it's set to "While Using the App", select "Never", wait a moment, then reselect "While Using the App" again. Then next, restart your iPhone. Once it's returned to the Home screen, test the issue.

About privacy and Location Services in iOS 8 and later -- If the issue persists, reset Location Services. Test the issue again.

Reset or disable Location Services

Location warnings are the requests that apps (such as Camera, Compass, and Maps as well as location-based third-party apps) make to use Location Services with those apps. An app will ask for permission the first time it needs to access Location Services data. Tapping Allow will give that app permission to use Location Services as needed. Tapping Don't Allow will prevent an app from accessing Location Services data. Apps won't use your location until they have asked for your permission and you grant permission.

If you would like to reset all of your location settings to the factory default, go to Settings > General > Reset and tap Reset Location & Privacy. When your location and privacy settings are reset, apps will stop using your location until you grant them permission.

Let me know how that goes, and take care!