There's multiple web apps that you download apps and in return you get credits and with those credits you can use them for amazon or iTunes gift cards

Here's the link

http://freeappslots.com/?refcode=55vxbzrj On this web app I'm saving my credits for an ipad

http://m.freemyapps.com/share/email/fb8f8be3 I've recently gotten a 25 dollar gift card on this one


Have fun