The wiki, inside the app
Browse recipes other photographers shared, read what they say about them, and add the one you like to your library in a tap.
Your Fuji photos
deserve better treatment.
The first mobile recipe lab and RAW developer for Fuji shooters. Develop straight out of your camera on iPad. Carry your recipe lab on iPhone.
The editor
Finally a decent way to develop a Fuji RAW.
Plug the camera in. The RAW you shot gets developed by the same body you shot it with — no presets, no profile guessing at the film look. What lands on the iPad is exactly what your camera would have made, straight out of camera, long after the shutter.
That’s the part Lightroom and Capture One can’t do. They approximate the look. We just get it.
The photo library
Every keeper, next to its RAW.
Developed photos live in a library of their own, beside the frames they came from. Albums, star ratings, search, a trash you can restore from — and for every photo, the exact recipe it was developed with. All of it synced through iCloud.
Getting shots in starts on the card: browse it before anything downloads, look at a frame full-size, star the ones worth keeping, and pull only those across.
The recipe lab
A proper home for your recipes.
Build and edit recipes without the camera plugged in. Name them, tag them, keep the ones that work. Paste in a recipe you found online — the app reads the settings out of the text, and you check them before saving.
Each recipe draws its own picture: concentric rings derived from its settings, redrawn live as you turn a dial. Same settings, same rings — you start to read a recipe at a glance.
On iPhone
The recipe lab, in your pocket.
A recipe idea rarely shows up at the desk. Build, tune and tag recipes on iPhone, keep your setups at hand, and browse what other photographers share — the same shelf, the same rings, the same details sheet as on iPad.
Setups
Your whole camera, in one snapshot.
A recipe is the film look. A setup is everything else — focus, stabilisation, face detection, your own menus, all seven C-slots in a single snapshot. Your whole camera, safe off it.
Drop a recipe onto any slot whenever you like, then put the whole setup back the moment you need it. Macro day, wedding day, that setup you spent an afternoon getting just right — it’s one tap away, exactly as you left it.
- C1 · Funfair Sunday
- C2 · Salt & Citrus
- C3 · Cobalt Sky
- C4 · Lemon Soda
- C5 · Polaroid Summer
- C6 · Sunday Matinee
- C7 · River Cruise
Early access · X-T5 first
Recipes learn to fly.
Tune one on the iPad and it lands on the camera, over the air. Working on the X-T5 today; the X100VI and the other X-Trans V bodies follow as each one is confirmed.
Just tap.
Pair it once, switch it on, and it's right there — no reconnecting, no fiddling.
One recipe, every field.
Film sim, grain, tone, white balance — the whole thing, exactly right.
Now in your pocket.
Your recipe library, on iPhone too.
The recipe wiki, in the app
You’re not in here alone.
Open the wiki and the whole community’s recipes are right inside X Sim Lab — filter by film simulation, processor, camera or upvotes. Tap one and it’s an ordinary recipe on your shelf, yours to edit. Share your own, or write the description the next shooter needs.
Share or improve
Publish a new recipe, add your own take to one that exists, or upvote the description that nails it.
Under a pen name
Post under a pseudonym with an optional bio — no real name, no account churn. Turn it all off any time.
Kept clean
A one-tap Report on anything off, reviewed by us — so the wall stays worth reading.
Eterna Bleach Bypass▲ 12
Cinematic Cool
X-T4
Classic Chrome▲ 10
Everyday Portra
X-T5
Provia / Standard▲ 9
GFX Provia Calm
GFX50S II
Classic Chrome▲ 9
Pastel Frame
X-E5
Classic Chrome▲ 8
Portra 800 Night
X-T50
Astia / Soft▲ 7
GFX Astia Soft
GFX100 II
Classic Chrome▲ 7
Kodachrome 64ish
X-Pro2
Eterna Bleach Bypass▲ 12
Cinematic Cool
X-T4
Classic Chrome▲ 10
Everyday Portra
X-T5
Provia / Standard▲ 9
GFX Provia Calm
GFX50S II
Classic Chrome▲ 9
Pastel Frame
X-E5
Classic Chrome▲ 8
Portra 800 Night
X-T50
Astia / Soft▲ 7
GFX Astia Soft
GFX100 II
Classic Chrome▲ 7
Kodachrome 64ish
X-Pro2
Classic Chrome▲ 7
Kodak Gold 200
X-E5
Acros + G▲ 6
Salted Slate
X-H1
Eterna Bleach Bypass▲ 6
Arthouse Bleach
X-S10
Classic Chrome▲ 6
Bright Kodak Pop
X100VI
Velvia / Vivid▲ 5
GFX Ultra Color
GFX100S
Classic Chrome▲ 5
Crisp Chrome
X-E3
Classic Negative▲ 5
Rust Roamer
X-T4
Classic Chrome▲ 7
Kodak Gold 200
X-E5
Acros + G▲ 6
Salted Slate
X-H1
Eterna Bleach Bypass▲ 6
Arthouse Bleach
X-S10
Classic Chrome▲ 6
Bright Kodak Pop
X100VI
Velvia / Vivid▲ 5
GFX Ultra Color
GFX100S
Classic Chrome▲ 5
Crisp Chrome
X-E3
Classic Negative▲ 5
Rust Roamer
X-T4
Browse all recipes →
A one-time, pseudonymous opt-in — the app stays fully offline until you choose to go online.
More in the kit
Everything around the develop.
Knows your camera
It spots your body and the recipe already on it, then shows you only the dials that camera actually has. No guesswork, nothing that won't apply.
Down to the real pixels
Zoom right into the frame and read the full shot info next to it — exposure, lens, body, file. Crop and EV sit one tap away.
Find the keeper
Filter the library to developed photos or RAW frames, and by star rating. Search by file or camera when you know what you're after.
Export
Develop the whole set at once.
Select your frames and develop them in one go — at the camera’s full size, with the same format, quality and crop across the lot. Keep them in the app’s photo library, or send them to Apple Photos or Files.
JPEG
Universal. Pick your quality and size.
HEIF
Smaller files, same look — HEIC out of the box.
TIFF
16-bit, every detail kept, ready for the big edit.
And the rest
Quiet things, but they add up.
- Made for iPad, down to the last pixel
- Loves X-Trans III–V and GFX — find your camera
- Recipes, setups and photos stay in sync over iCloud
- Every recipe draws its own rings — same settings, same picture
- Updates arrive over the air — one tap in Settings
- Quick to develop, quick to connect — the camera sets the pace
The shot you took is the one worth keeping. Get the look right in camera, and there’s nothing left to fix later.
That confidence is the whole point of a recipe — and X Sim Lab is where you tune one until it’s right.
“I usually shoot SOOC and never touch my files afterwards. But I wanted to give X Sim Lab a try — and now I actually enjoy developing my RAFs.”
“I used to import everything into Lightroom and spend ages trying to match the look. Now I just don't.”
“I'd basically given up on developing my RAFs on the go. This is the first tool that made me want to again.”
Next on iPhone
Want to develop on iPhone too?
Today the iPhone app is your recipe lab. Developing RAWs and talking to the camera stay on iPad — for now. Leave your email and we’ll tell you when that changes.
One email when developing comes to iPhone. Nothing else.
FAQ