There is nothing on Apple's site about the sale, nor do the apps indicate the reason for their discounts. However, with the App Store anniversary coming up, and with the fifth anniversary being significant, it seems like an obvious reason for a sale.
Among the apps seen for sale, thus far, are expensive ones such as Traktor DJ for iPad, which normally sells for $19.99. Traktor DJ advertises itself as "the world’s #1 pro DJ software." Popular games like Where's My Water are also among the newly free apps.
The current list of free apps, which could expand, is below:
- Traktor DJ (iPad / iPhone)
- Infinity Blade II
- Superbrothers: Sword & Sworcery EP
- Tiny Wings (iPad / iPhone)
- Where’s My Water
- Day One
- Barefoot World Atlas