Comparison

Calotype vs Knurl Camera

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calotype

This app provides a streamlined RAW camera experience for photographers, offering direct access to DNG files without cloud services or extra processing. It features manual controls like shutter speed, ISO, and focus, along with interval shooting and exposure bracketing.

Highlights
  • RAW DNG file saving
  • Manual camera controls (shutter, ISO, focus)
  • Interval shooting for timelapses
  • Exposure bracketing
  • In-app gallery for review and sharing
Read full description

Calotype is a simple RAW camera for photographers who want a cleaner path from lens to file. Your iPhone already has a very capable camera. It also makes a lot of decisions before you ever see the photo. Calotype keeps things quieter. On supported back cameras, Calotype saves real RAW DNG files that you can take into the editor of your choice. No accounts, no cloud library, no extra processing layer. Manual controls are built around the camera you are actually using. Shutter speed follows the sensor’s real format limits, with ISO, focus, white balance, exposure offset, and focus peaking close at hand. You also get interval shooting for timelapses and hands-free captures, exposure bracketing for tricky light, and a simple in-app gallery for reviewing, sharing, and deleting recent shots. Calotype is made by a photographer, for the moments when you want the phone to feel a little more like a camera.

About

Knurl Camera

Read full description

Knurl is a camera for people who would rather develop the photo themselves. It captures true Bayer RAW: the sensor's own mosaic, written straight to a DNG with none of the computational photography that normally happens on the way. No multi-frame fusion, no tone curve, no sharpening. What lands in your library is undeveloped data with all of its latitude intact, ready for Lightroom or Photos to interpret however you like. THE CONTROLS ARE THE POINT A mode wheel you turn, with the real designations: P for program, Tv for shutter priority, Sv for ISO priority, M for full manual. Every position clicks. ISO and shutter move in thirds of a stop along the standard photographic ladders, on a dial that detents at every rung. Whole stops click harder than thirds, so you can count them by feel without looking. The ends of each ladder are the sensor's genuine limits rather than round numbers, which means base ISO, the cleanest the sensor gets, is actually reachable. Exposure compensation on its own scale, in thirds, with a firmer detent at zero. In manual it becomes the meter, because compensation has nothing left to act on when both controls are already fixed. An AF/MF switch and a focus ring you turn like a ring: relative, so touching it never jumps focus, and marked near to far rather than in invented distances. Three lenses, each at its native focal length, read from the hardware. HONEST ABOUT ITSELF Bayer RAW is 12 MP and does not permit zoom. The 48 MP path would mean Apple ProRAW, which is demosaiced and partially processed, so Knurl does not offer it. When the exposure you have asked for is not achievable, it says so rather than pretending. Your shots go to a Knurl album you can browse in the app, pinch to zoom, and swipe through. Volume buttons fire the shutter. Add the Control to your Action Button, Lock Screen or Control Center to open it without unlocking.

Screenshots

Calotype4 screens
Knurl Camera4 screens

Verdict

The call

The clearest difference is in-app purchases: Knurl Camera at none against Calotype's 1. On price and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calotype sells 1 one-off in-app purchase. Knurl Camera asks for nothing beyond the download.

Scorecard1 real difference · 7 level
Calotype versus Knurl Camera: the parameters behind the verdict, then further details
ParameterCalotypeKnurl Camera
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Ads—No
In-app purchasesYesNo — better
MonetizationFree—
Devices—iPhone — better
Requires iOS1818.0
Further details — not scored
Size3 MB1 MB
Age rating4+4+
DeveloperKyle AaserudDimitrios Zarkadas

In-app purchases

1 purchases

Calotype

One-time1
  • Calotype Pro$3.99
None

Knurl Camera

No in-app purchases

Questions

Is Calotype free?
Calotype is free to download, with in-app purchases available.
Is Knurl Camera free?
Knurl Camera is free to download, with no in-app purchases.

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