Update: Apple has made the official announcement now. Although other apps have gone free too, officially the promotion includes five games (Badland, Infinity Blade II, Sword & Sworcery, Tiny Wings, Where's My Water) and five apps (Barefoot World Atlas, Day One, How to Cook Everything, Over, Traktor DJ for iPhone). -- Original story is below --
A number of popular iOS apps and games are currently being offered for free on Apple's App Store. The Verge was first to note the coordinated move, and though Apple hasn't made any official announcement, the site speculates it may be related to the store's fifth anniversary, which is due this week on July 10.
None of the apps have been given away for free before. Most sold for a few bucks, but there are also a handful more expensive ones on the list, such as Infinity Blade II, How to Cook Everything and Tracktor DJ – an iPhone and iPad application for pro DJs that has gone from $4.99/$19.99 respectively to zero. Here's the full list (so far):
Games
| Title | Original price | Now | Platform |
| Infinity Blade II | $6.99 | Free | Universal |
| Tiny Wings HD | $2.99 | Free | iPad |
| Tiny Wings | $0.99 | Free | iPhone |
| Where's my Water | $0.99 | Free | Universal |
| Badland | $3.99 | Free | Universal |
| Sword & Sworcery | $4.99 | Free | Universal |
| The Idiot Test 3 | $0.99 | Free | Universal |
| Pig Shot | $0.99 | Free | Universal |
| Liquid Sketch | $1.99 | Free | iPad |
| Infinity Blade | $5.99 | $2.99 | Universal |
Other
| Title | Original price | Now | Platform |
| Day One Journal | $4.99 | Free | Universal |
| Traktor DJ | $4.99 | Free | iPhone |
| Traktor DJ | $19.99 | Free | iPad |
| Over | $1.99 | Free | Universal |
| How to Cook Everything | $9.99 | Free | Universal |
| Map My Ride+ | $0.99 | Free | iPhone |
| Barefoot World Atlas | $4.99 | Free | Universal |
| Knots 3D | $1.99 | Free | Universal |
Aside from its upcoming anniversary, the move comes nearly a month after Apple announced it had hit the 50 billion downloads milestone, and a total of $10 billion paid to developers. There are now 900,000 iOS apps available for download for iPhone, iPad and iPod touch, with 375,000 designed specifically for iPad.