6 September 2015
Straightforward and understandable (relatively).
9 August 2014
Interesting. Needs an update.
27 July 2014
Excellent overviews and description of the universe.
27 April 2014
Love it! very informative and entertaining!!
15 April 2014
Good good good!
10 April 2013
Seems like an interesting app but can only view Cosmology in trial. Not enough for me to make a buy decision.
8 February 2013
Just perfect !!
18 January 2013
Ok
9 May 2012
Very good for beginners and advanced astronomers. I like the fact it has a complete Misner catalog with explanations and references.
18 April 2012
Not as up-to date as it should be (e.g., there's no mention of the New Horizons mission to Pluto) and threadbare in places (little mention is made of the Mars rovers and their individual contributions), but there is a lot of material to read here and ample illustrations. Marred by a few misspellings and a few diagrams that require squinting by an older generation, it's otherwise a good starting point for would-be astronomers.