Apple has now given developers the ability to use promo codes to give away copies of their applications on the App Store. Previously, developers had to build a special version of their application (i.e. Ad-hoc copy) that included a mobile provisioning file and the actual application. These two files were then dragged onto iTunes to install them.
With the Ad-hoc model, developers were limited to giving away 100 copies of their applications. Plus, users needed to find & supply the UDID information for their iPhone/iPod touch. With this change, developers can give away a special code that, when typed into the iTunes Store under the "Redeem" section, will give the user a free (or promotional) copy of the application. However, there are some caveats to using the promotional codes:
- The developer can only give away up to 50 promotional codes per application version
- Currently the promo codes can only be used in the US iTunes Store