23 October 2014
I like learning about the engines with this, but the cost of $3.99 is just too much for 3 extra engines. If there were more included, or the price dropped I'd give it five stars.
23 March 2014
This is so neat, thanks for doing such great work. This is what I look for in an educational app.
30 December 2013
I like it
20 August 2013
But totally useless in CHINA, because we can't access to facebook and twitter...
1 June 2013
Great 3D models and detailed explanation!
16 May 2013
In order to use the software it FORCES YOU TO "LIKE" IT in Facebook.
5 May 2013
muito bom, realmente interessante
20 April 2013
very detailed different engines description
20 April 2013
I really like the 3d interactive feature in the software. Really make learning easier.
3 April 2013
You can see what they consist of, check different types and study how they work. All this in an interactive way.