While the default camera application is good for casual users, it does not suffice for professional photographers who want to get more out of their device. Fortunately, there's an alternative that gives you a full control over the camera performance and plenty of settings to fiddle with.
Manual, a new minimalistic app, is available on the App Store for just $1.99. It comes with various settings that allow you to tweak focus, white balance (with a few pre-defined scenarios to choose from), shutter speed, exposure bracketing, and ISO.
The interface is minimalistic but it's not perfect. Tiny buttons and controls are sometimes difficult to handle, but that should not deter photography nerds. After all, Manual was built with them in mind and puts functionality before intuitiveness. There's no automatic mode from what we know so you are on your own when it comes to taking pictures.