100 - 500 downloads
by Lorne on 07/09/2011
Best ref app I own! Worth the $$$This is your entire college calc-based physics book in app form. I thought it was pricy at first too, but nothing else I found could beat it.
by Dude on 26/06/2011
some content missingI click on a subject, and it does not show anything. It says it can't find URL. This is like buying a book with some of the chapters completely torn off. The display is compatible only with smart phone screens. Im using xoom but the d