Well worth the cost
I bought the Plus version. Its the most Ive ever paid for an app. It is worth the cost. Powerful, easy to use, and the Help text is very good and the customizability is extensive but strict forward.
I use this more than the program on my PC I spent hundreds of dollars for. I use it to guide my telescope and it is very easy and intuitive.
I also like the ability to create custom observing lists and record observations. The information and pictures of each object are informative and interesting. Many if not most have accompanying detailed photos.
Stbroad about
SkySafari 4 Plus: Map the Universe! Discover Sun, Moon, Mars, Stars, Planets, and Satellites with your telescope and NASA space missions!