ProCamera 7 is perhaps one of the most underrated camera apps in the iTunes App Store. Just like Camera+, ProCamera 7 features a ton of power features that take your photography to the next level.
The app allows you to change the aspect ratio, set a self-timer, lock the white balance, view live exposure information (like ISO and shutter speed), enable the grid and tiltmeter, and even lock focus and exposure settings.
The Settings pane gives you even more control over photos, including customizing the self-timer, where you want photos saved to, what format you want photos saved in, etc.
The feature set is quite extensive and perhaps might have just a tad more power features than Camera+ has, but both apps are admiral when compared to the stock camera app.
ProCamera 7 costs $0.99 in the iTunes App Store, making it one of the cheapest full-featured camera apps available.
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