To fully use this program in Android 6. 0+ you should manually allow all required permissions. This can be done from the info/details window of the app, permissions section. ClearSky Free is a planetarium designed to be easy to use and very customizable, providing a pleasant view of the sky.
Tomás Alonso Albi is the creator of ClearSky Free Planetarium that is included in the Educational category. The most recent release was on Oct 14, 2020 and the tool was downloaded and set up by over 10K users. Users rated this application 3.6 on Google Play.
Take the opportunity to get the installation package of ClearSky Free Planetarium 1.22 free of charge and take a look at users' reviews on Droid Informer. The app is designed for Android 2.3 and above. The app is totally secure to download.