Described by its publisher somewhat immodestly as 'the ultimate iPhone photo and video app', Camera Plus Pro offers unmatched functionality. It boasts features as diverse as multiple file sharing, private sharing and sharing by Wi-Fi, multi-level flash, and the ability to add copyright notes to images. But the core of the app is the ability to capture photos and video, and real-time full resolution photo editing, something that Camera Plus Pro achieved before even Adobe's Mobile Photoshop app. (See also Adobe Photoshop Touch for Android review.)
Camera Plus Pro has a number of shooting modes, and version 4 brings to the table full resolution live filters for photos and videos, and shake-free video capture.
Open up Camera Plus Pro and you enter what feels like a marginally more complicated, but somewhat slicker version of the native iOS Camera app. There are five options: like the Camera app you have a large button to capture images and the ability to toggle between still and video photography. But there is also a Filters option and access to the Gallery, as well as an options tag that allows access to Tags, Settings and Info, as well as the Anti-Shake, Timer, Burst Mode, Geo Tags and Grid Lines features. Here there's also an intriguing feature called 'Big Button'. It took us a while to fathom this out, but this makes the whole screen the capture button, meaning that you can take a snap of yourself without fumbling around to find the software button. Invaluable on a single camera smartphone.
The self timer offers you choices between two and 10 seconds, and burst mode can capture between three and 10 photos at 0.7 frames per second with flash, and 0.9fps without. The Grid Lines feature helps with composition, and you can add Geo Tags when you are shooting, or retrospectively append them to images.
All the major image-editing functions are here, and easy to apply: photos can be cropped and rotated. You can adjust the brightness, saturation, hue, contrast, sharpness, tint and colour temparature. There's also a wide range of filters and borders, including adjustable distortion filters. There's a zoom function for both still and video capture, although it is digital zoom, which isn't all that useful. Unlike a genuione, optical zoom, digital zoom merely makes the pixels bigger. Thus the quality of the image degrades the more you zoom.
The video capture function also allows you to use filters, but we found that the quality of output with filters applied wasn't as good as that from the native iOS Camera. Video editing is pretty minimal, too, allowing you merely to shorten clips by removing footage.
You can share the resultant photos and videos direct to Twitter and Facebook, or post photos on Flickr and Picasa, and videos on YouTube. You can also email images and, most impressively, share them over Wi-Fi, in a remarkable simple manner.