Comparison

Lucid 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

Lucid

Features
Read full description

Shutter, ISO, white balance and focus — on real dials, laid out like a camera body instead of buried in a menu. The viewfinder shows exactly what saves. Pick the one thing you care about — Aperture-free Auto, Manual, Shutter or ISO priority — and Lucid floats the rest live as the light moves. One purchase. No subscription. UNFOLDS ON IPHONE DUO Open iPhone Duo and Lucid becomes a camera body: the viewfinder fills one half of the display, and the other half is a full control plate under your thumb — shutter and ISO on two live dials at once, big readouts, a labeled zoom ring, flash, timer, grid and level as buttons, your Looks and Profiles one tap from the shutter. The viewfinder turns with the camera, not the screen. Close it, and Lucid is the camera you already know. OPENS FROM THE CAMERA CONTROL BUTTON On iPhone 16 and later, set Lucid as your Camera Control app. One press opens Lucid right from the Lock Screen: no unlocking, and every manual dial is there. Half-press to adjust zoom, exposure, priority and Looks without taking your eye off the frame. WHY LUCID Most camera apps hand you a filter and a shutter button. Lucid hands you the camera. Four exposure priorities (Auto, Manual, Shutter, ISO) let you decide what to control and what to let the camera solve, live. Everything you set, you see. Everything you see, you keep. And it's yours. One purchase, no subscription. The camera doesn't stop working when the month ends. WHAT YOU CAN DO - Shoot full manual: shutter, ISO, white balance, and focus, on real dials - Choose what you control: Auto, Manual, Shutter or ISO priority — the camera solves the rest, live - Capture RAW, ProRAW, HEIF, and 48MP, keeping every bit of the file - Nail focus with peaking and a magnified loupe - Read your light with a live histogram and zebra stripes - Grade with Looks: film LUTs previewed live in the viewfinder, baked on capture - Import your own .cube LUTs - Pull long exposures, bracket, and set a self-timer - Save full setups as Profiles and recall them in a tap - Launch from the Camera Control button, even on the Lock Screen - Open iPhone Duo for a two-dial control plate beside the viewfinder - Shoot manual video too: Apple Log, ProRes, and a cinematic 180° shutter BUILT HONEST No aperture slider. Your iPhone's lenses have fixed apertures, and faking it would be a lie. No account. No analytics. No cloud. Your photos never leave your phone, and location tagging stays off until you turn it on. ONE PURCHASE. YOURS FOREVER. Try every feature free. Then unlock Lucid for a single payment: no subscription, no upsells, no expiry date. Shoot like you mean it. Support: support@lucidcamera.app Privacy: https://lucidcamera.app/privacy/

About

Knurl Camera

Capture unprocessed RAW image data directly from your device's sensor. Offers granular manual controls for ISO, shutter speed, and focus, allowing for complete creative freedom in post-processing.

Highlights
  • Bayer RAW capture
  • Full manual controls (ISO, Shutter, Aperture)
  • Physical control dials
  • Relative focus ring
  • Native focal length lenses
  • Exposure compensation scale
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

Lucid4 screens
Knurl Camera4 screens

Verdict

The call

The clearest difference is in-app purchases: Knurl Camera at none against Lucid's 1. Knurl Camera also leads on iOS requirement (18.0 vs 26.0). On price, ads and device support 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. Lucid sells 1 one-off in-app purchase. Knurl Camera asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Lucid versus Knurl Camera: the parameters behind the verdict, then further details
ParameterLucidKnurl Camera
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone
Requires iOS26.018.0 — better
Further details — not scored
Size32 MB1 MB
Age rating4+4+
DeveloperPerry HamptonDimitrios Zarkadas

In-app purchases

1 purchases

Lucid

One-time1
  • Unlock Lucid$4.99
None

Knurl Camera

No in-app purchases

Questions

Is Lucid free?
Lucid is free to download, with in-app purchases available.
Is Knurl Camera free?
Knurl Camera is free to download, with no in-app purchases.
Do Lucid or Knurl Camera have ads?
Neither Lucid nor Knurl Camera shows ads.

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