Free iPad app giveaway for Teachers

Okay this is really simple.  Following yesterday's review of the iphone app 'This day in History' I have just been given 5 free codes for the app from the company that produced it. All you have to do is send me an email - kev@edgalaxy.com telling me of an app that you use for teaching.  First in best dressed.  Can't wait to hear from you.