Its okay...

I had read many good reviews about this program so I purchased it for my iPad. I have also downloaded a few FREE celestial apps also.
For the money, this app is only slightly better than the free ones.
And I just noticed that a few day after I got this version (4), they came out with version 5 plus and want $8 more! Really!! I had originally gave 3 stars but changed it to 2 for this reason alone.
Sometimes it gets quirky with the iPad. If the tablet goes to sleep while program is running, upon waking the calibration is way off and I have to restart the program which means going back to iPad home screen which is white light.
Another quirk is with the free apps, you can get the projected path of the star or planet. Actually gives you the time when it will be in your viewing area. Not with this app.
This app does have some nice features but for the main intention, its just okay.
People that give rave reviews have obviously not tried some of the free apps that are just as good if not a little better.

Caitnah about SkySafari 4 Plus: Map the Universe! Discover Sun, Moon, Mars, Stars, Planets, and Satellites with your telescope and NASA space missions!