App Store promo codes let you redeem a free copy of an iPhone, iPod touch, iPad or Mac app by entering a code into iTunes, the App Store app, or the Mac App Store app. They exist so developers can provide free copies of their apps to reviewers and lucky customers. Each promo code is unique and can only be used once. This is what they typically look like: RWAPJ7XLTHN7 (yes, that’s a real code and yes, it’s been used).
Redeeming iOS App Store and Mac App Store promo codes is easy. Simply click the Redeem link that can be found on the right hand side of the iTunes Store home page in iTunes on your computer, tap the redeem button at the bottom of the featured tab, or use this direct link: iTunes Store Redeem. Please note that Mac apps need to be redeemed from the Mac App Store app itself.
Once you’re on the Redeem page, paste the promo code into the field provided and click Redeem. You may have to enter your password. Your free app should start to download.
As of December 9, 2010, promo codes can now be redeemed in all App Stores (previously they were only redeemable in the US App Store). Please also note that developers get a maximum of 50 promo codes per app version.
We frequently give away promo codes for our apps on Twitter and some other iOS app review sites. If you’d like to get something for nothing, please follow us on Twitter.
We’re using the hashtag of #promocodes in our Tweets now, to help users find promo codes across Twitter.
Developers: We’ve set up a shortcut (tr.im/redeem) that links to the App Store redeem page. Feel free to use it.
1 — Open the iTunes Store, click Redeem

2 — Paste in your promo code

3 — Click Redeem
