Still the best camera app for iPhone – ProCam 8 - Pro Camera Review

With the ability to tweak so many different facets of your iPhone, iPad, and iPod Touch camera paired with all the additional features, including a true 4k video mode, it still amazes me that Apple hasn’t tried to buy the app from the developer and turn it into the built-in camera app’s “Advanced Mode”. Even with all the features and tweaks it has, it’s still simple enough that anyone can use it. If you really want to take advantage of what this app can do, however, I recommend a tripod for your phone. Clip-on lenses can also stretch the capabilities of this app, but they’re not as necessary for some things like extended shutter and time lapse photography.
Review by Bill Somethingorother on ProCam 8 - Pro Camera.