Perhaps the most novel use of AR in Night Sky, is what the app calls AR Planetary Portals. Again, it's a 'premium' feature, but it's one that's worth checking out with the free trial. AR Planetary ...

If you're new to the idea of sideloading, it simply means installing apps from outside the Google Play Store ... to those of us missing the Dark Sky app after Apple acquired it.

and the new app is a free upgrade for existing users. “The most noticeable change is the introduction of a new unified timeline,” the Dark Sky team explains in a blog post today.