Wipe out wave after wave of enemies by warping from one side of the screen to the other in Chillingo's Super Crossfire. We also have an app that allows you to project photos and PDFs to your computer without additional software, and a slick photography app that allows you to make collages.
All app prices are subject to change at any time and without notice regardless of stated free duration. Price changes are solely under the control of the developers.
Photo Power ($2.99 → Free, 4.8 MB): This powerful yet easy to use photo app allows you to edit and apply a variety of filters and lomo effects to your favorite shots. Photos can be edited at their full resolution, or you can reduce the resolution for quick processing. Each of the filters and lomos can be customized in a variety of ways. The app also includes undo and redo, and the ability to share photos via Twitter and Facebook.
Photo Power is available for free for a limited time. It has a 4.5-star rating with a total of 239 ratings.
Super Crossfire™ ($0.99 → Free, 36.3 MB): Create your own crossfire to wipe out every last enemy in this arcade shooter. The game features a unique switching mechanic where you can warp your ship from the bottom of the screen to the top at any time to not only avoid enemy fire but also get the upper hand. As you make your way through each wave of enemies you'll earn credits, which can be used to upgrade your ship and weapons. The game includes five chapters, 150 weaves of enemies, multiple control methods, and achievements and leaderboards via Game Center.
Super Crossfire™ is available for free for a limited time. It has a 5-star rating with a total of 22 ratings.
Air Projector ($2.99 → Free, 400.7 KB): Project photos and PDF documents wirelessly from your iDevice to your computer without any additional software with this productivity app. Air Projector presents you with a URL upon launch, and all you have to do is type it into your favorite Web browser. Then flip through your PDFs or photos on your iDevice and watch as they show up on your computer screen automatically. The app also includes a built-in laser pointer and optional password protection.
Air Projector is available for free for a limited time. It has a 4-star rating with a total of 27 ratings.
Nostalgio ($2.99 → Free, 13.2 MB): Design professional quality photo collages in minutes with this photography app. The streamlined interface takes you through each step of the process by requiring you to choose how many photos you want to include, the type and orientation of your photos, the layout, and the border type. You can also modify photos with filters or rotate them in editor mode. Once everything is to your liking, you can save your creation to your library or share it via a variety of social networks.
Nostalgio is available for free for a limited time. It has a 4-star rating with a total of 577 ratings.
Saving Yello ($0.99 → Free, 18.8 MB): Mathilda loves to play with her goldfish, Yello, outside of his beloved bowl. Help him make a safe return by flinging him across a toy-filled room in this physics-based puzzle game. Just pull back on Yello's tail to fling him across the room, and smash through toys to earn bonus points. The game includes three environments, 50 levels, power-ups, and achievements and leaderboards via Game Center.
Saving Yello is available for free for a limited time. It has a 4.5-star rating with a total of 4606 ratings.
Slot Racing HD ($2.99 → Free, 33.7 MB): Take a trip down memory lane with this top-down slot racing game. Just like the original toy, your goal is to keep your car on the track by maintaining a safe speed and avoiding collisions. If you stay on the throttle too long or cross into your opponent's slot at the wrong time, your car will jump off the track and you'll have to wait a brief moment to take off again. The game includes seven cars to choose from, seven tracks, three levels of difficulty, and same-device multiplayer.
Slot Racing HD is available for free for a limited time. It has a 3.5-star rating with a total of 22 ratings.
That concludes today's issue of Apps Gone Free. If you like staying on top of these daily deals, don't forget to check out our free AppsGoneFree app. 
It provides all the deals each day, and even an archive of past deals that are still active.
Developers:
If you are a developer who would like to get your app included in our “Apps Gone Free” daily lists, here’s our basic set of rules:
- It must have at least a three-star average rating at the time it goes free.
- The app must not have been free numerous times (3+) over the last six months.
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