Apple is now offering a free promo code for the popular Union photograph-blending application by Pixite through its Apple Store application, which is a free download from the iOS App Store and is used to search Apple's product offerings, make purchases, and schedule Apple Store appointments.
Apple offers digital content such as applications, iBooks, and even music in the Apple Store application every so often to get its users constantly looking back at the Apple Store in the hopes that they'll eventually see something they like and potentially make a purchase. New digital content is added every few months and is easily redeemed.
With Union, which is normally a $1.99 purchase from the iOS App Store, but is free via the Apple Store application until February 10th, you can combine several of your photos together to make unique photo blends and apply editing to make your photographs more interesting.
Some of your editing tools include removing backgrounds from elements in a photograph, to experimenting with different editing tools and brushes, to changing colorization to give photos a surreal appearance.
Originally Posted by App Store
1. Download and install the Apple Store application from the iOS App Store if you haven't already (direct link)
2. Launch the Apple Store application and open the "stores" tab at the bottom of the application
3. Scroll down to where you see the "Get it the way you want" text, and swipe over to the right twice
4. Tap on the "Combine photos. Create Art." link
5. Tap on the green "Download now for free" button
6. Redeem the promo code that you're given in the iOS App Store and your download will begin
Seeing as how Apple doesn't appear to be choosing a new App of the Week for the iOS App Store this week in light of it being New Year's Eve, this is a great surprise for anyone that was looking forward to getting a paid application for free today.
Source: Apple Store App via Actualidad iPhone (Google Translate)