645 PRO Mk III has been designed, from the ground up, for professional and serious amateur photographers. So it works the way a camera works—and it’s the most powerful camera app we’ve ever seen!

You have instant access to everything that can be controlled on an iOS camera.

That means fully manual exposure control, as well as semi-automatic Shutter Priority and ISO Priority, together with fully automatic exposure with a choice of spot or matrix metering. Automatic and semi-automatic modes also include ±3 Ev. exposure compensation, while the on-screen meter lets you judge your manual exposures to perfection.

It means the choice of AWB or a selection of white balance presets—and even the ability to create and save a completely custom white balance.

And it means manual focus override—just swipe your finger up and down the viewfinder to control the lens position. And you even get focus-peaking to help you identify what will be in perfect focus!

And you have all the information you need, all the time, including real-time exposure metering, real-time ISO and shutter-speed readings, Ev, real-time GPS data and a choice of histograms. And many aspects of the interface can be customized, so you can—for example—configure the Shutter Release button to behave the way you want.


645 PRO Mk III combines the ultimate in lifelike "film look" output with the ability to save completely unprocessed image data at the highest quality possible—as Camera RAW.

Its gorgeous Film Modes are inspired by classic film stock as used by top photographers from the 1960s through to the present day—and if you want to edit them, and save custom, personalized films, you can. Meanwhile its unprocessed images are just that—ready for later post-processing or to be used "as is" for reportage.

Whether you shoot Film Mode, unprocessed or both, you have the choice to save in HI-Quality JPEG, MAX-Quality JPEG, or—for top image fidelity—TIFF.

And you have the option to shoot in one of seven formats, from square 6x6 to panoramic 6x17, all inspired by classic Medium Format cameras. Also inspired by film, you can add one of 21 Photo Filters, all with fully-adjustable densities.

You'll get photographs from your iPhone like you never imagined!

Drawing its inspiration from the obsession with quality embodied by top-end Medium Format film and digital cameras, 645 PRO Mk III exists purely to help you use your iPhone as a tool for composing, taking, saving and sharing the finest possible photographs.

"645 PRO takes the best iPhone photos you have ever seen"
-- Charlie Sorrel, Cult of Mac

"My number 1 camera replacement app"
-- Glyn Evans,

"If you’re looking for a camera app which leans toward a professional pallet of tools, then 645 PRO is certainly the best there is"
-- Ben Reid, Redmond Pie

"Not only do you get what is arguably the best, serious-shooter, camera for the iPhone but you also get a level of customer care, devotion and attention to detail that you will be hard pressed to find elsewhere on the App Store. In short: 645 PRO is a steal. Buy it today!"
-- Aaron Stanley, Appsolute Reviews

What’s New

Version 5.14

Release 5.14
* Bug fix: User Guide works again...
Questions or problems? Please CONTACT US: we'll help you promptly!

Ratings and Reviews

5.0 out of 5
4 Ratings

4 Ratings

Troposa ,

So good

It’s a pity this app hasn’t caught on. I love the images it produces and it’s great to use. Do yourself a favour and give it a go. I’ve been using it for years now.

Peter_S73 ,


Just bought it and have tested most of the functions & features. Admittedly, I'm on an iPhone 4, so perhaps my device is too slow, but this app has so far jammed up each time I've used it.
For example, while using the 10-second timer, I hit the shutter button once, then again by accident, it then counted down to 0 and fired, but the beeps continued on and on, no matter what I did to stop it. Finally I had to shut down the app to stop the noise. Later, another jam happened with the shutter button after shooting a series of pics. And so on. Each time a different jam but always requiring a shut-down to clear the problem.
Obviously this app is brand new and needs some stability work. But testing it on customers like me is not appreciated. I'd recommend watching out for such bug and stability updates BEFORE buying it.
On the upside, it's loaded with great features, a lot like a good DSLR. Should work great on an iPhone 5, and if it works without jams, I'd say 5 stars!

Kurni Kwok ,

Good night mode

Max 1 second shutter is similar to my DSLR. The night mode struggles a bit with either focus or sharpness (I don't know); there is slight blur despite using timer and tripod. Nevertheless, the (longer than 1/15s) exposure is useful, unlike my Top Camera and Camera+. I love how it immediately saves to the default Photos app, making this my favourite compared to the other 2 paid apps. Unfortunately the only way to delete photos is from the default Photos app, but I don't know if this is iOS restriction for directly accessing the default Photos database, which is very important to me - no more getting confused about which photos I'm browsing, and mixed up time stamp if exporting from 3rd-party camera apps to the default Photos app. 4/5 stars might be unfair because I'm too used to DSLR, and I don't know if the app already hits iPhone hardware limitation. My favourite camera app so far 👍


Michael Hardaker
9.6 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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