Apple have released an app called 12 Days of Gifts app at the itunes store for iPad & iPhone users.
This is an annual promo from Apple, and will start from December 26th and run till January 6th 2014.
Users will be getting a gift each day, till the end of the promo period. Each app will be available for free for 24 hours only.
The gifts include songs, apps (& possibly games), books, films,etc.
You can download the 12 Days of Gifts app from iTunes. It is a 64 mb download and runs on iOS 7 or above.
Please note that some of the promos may not be available in all Countries.