Name: Grammar Up HD

What is it? Improve grammar and vocabulary with this multiple-choice quiz system featuring more than 1,800 questions in 20 categories.

Best for: English/Language Arts; iPad

Price: $4.99

Rated: 4+

Features: More than 1,800 multiple-choice questions; choose number of questions you would like in each test; shows test results in HTML format; eMail yourself the test results and track your progress; “Progress Meter” keeps track of how you are performing in a particular topic; choose your own timer settings.

Link: http://itunes.apple.com/us/app/grammar-up-hd/id406782226?mt=8&ign-mpt=uo%3D4