It's safe to download the app. Outdoormap AB has developed Linköpings Naturkarta that lies within the Travel & Local category. Over 1K users set up the tool and its latest update was launched on Jul 13, 2018.
This application was rated 4 on Google Play. It's free to download the installer of Linköpings Naturkarta, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.1 and above.