ProCamera
This nifty capture program displays a tiltmeter in real time as you tak your picture to ensure your horizon is strait. You can also set it to delay capture of an image until the accelometer detects the phone is nearly motionless, leading to sharper hand-held pictures.
Download from iTunes
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aPhoto GPS Marker
This program does more than just insert GPS coordinates. It can super impose a full suite of labels ontop of photos including latitude/longitude/altitude, copyright, distance to a known point, and caption. We can think of a hundred uses for this, but here is just one: if you’re a nature photographer you can do an initial walk-through of a park with your phone in hand and take quick snapshots of areas you’d like to return to.
Download from iTunes
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Photo Calc
We love this application’s Sunrise and Sunset calculator which automatically detects your current location and tells you what time the sun will rise and set. The depth of field calculator, reference material, and other features are interesting but not as compelling, and the developer said he is eager to add more features.
Download from iTunes
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CameraBag
This program is all about filters. You can style your photos on your phone to Polaroid, Holga, Lolo, Mono, Infrared, and Fisheye look. We’re particularly found of the Holga look (called “Helga” in the program, presumably for copyright reasons).
Download from iTunes