Comparison

X Sim Lab vs Jepex

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

Head to head
About

X Sim Lab

Develop RAF files from Fujifilm X Series cameras using custom film simulation recipes directly on your iPad. This app allows you to import files, apply in-camera processing, manage recipes, and export JPEGs without needing a desktop computer.

Highlights
  • Develop Fujifilm RAF files
  • Apply custom film simulation recipes
  • In-camera processing
  • Manage recipe collection
  • Crop and export as JPEG
  • iPad-only workflow
Features
Read full description

X Sim Lab — Your film lab. Anywhere. Develop RAF files from Fujifilm X Series cameras with your own film simulation recipes — right on your iPad. Authentic in-camera processing, no desktop needed. What it does: Import RAF files via USB-C from supported Fujifilm X Series cameras Gather shots from multiple sessions into a single film strip Apply film simulation recipes using the camera's own processing pipeline Manage and organise your recipe collection Crop and export as JPEG Complete your entire workflow on iPad — no computer required Check camera compatibility at x-simlab.app/cameras before downloading. Not all RAF-producing cameras are supported. Not affiliated with or endorsed by FUJIFILM Corporation. FUJIFILM and X Series are trademarks of FUJIFILM Corporation.

About

Jepex

Read full description

Cull thousands of photos, fast: no import, no catalog. Fix a horizon, finish the light. And when you forgot which recipe a photo was shot with, Jepex reads the metadata and finds it. THE LIBRARY Your photos stay in your folders, no lock-in. - Work with photos from anywhere: folders from Files, external drives, iCloud Drive, or your Apple Photos library - Cull fast: swipe full-screen, star, flag, sort into albums - Video sits with the stills: play, rate, flag, sort - Ratings and edits travel with your folders, not with a database THE EDITOR Fix a horizon, finish the light. Every edit stays high quality. - Crop, straighten, rotate, flip - Exposure, contrast, highlights and shadows, tone curves - Film-look finishing: grain, halation, black mist, fade, vignette - Heal spots, add classic print borders - Every save keeps every camera setting, including the recipe THE RECIPES Find the recipe behind any photo. - See the exact settings a photo was shot with: film simulation, grain, Color Chrome, white balance shift, dynamic range - Match your photo against community recipes and find the one that made it - Explore recipes for your camera: filter, sort, compare, see similar recipes, save favourites - Create your own recipes: publish them, or keep them private - Share any recipe with a link MADE FOR YOUR CAMERA Not a generic tool: each camera brand gets its own support, built one by one. - Any camera: full shooting info on every photo - Fujifilm: recipes end to end: detect, match, create, share - Ricoh GR: Image Control recipes, the same depth - Nikon: Picture Control readout SHARING Turn a shot or a recipe into a share-ready card: film-strip collages, camera-and-settings story cards, recipe cards. FREE AND PRO Recipes stay free, forever: detecting, browsing, comparing, creating, sharing. Jepex Pro adds the workflow: rate and flag to sort a whole shoot in minutes, save clean JPEGs that keep every camera setting, and export a whole selection at once. Your work continues on any device, no vendor cloud. Subscription through the App Store. Cancel anytime. Your files, ratings, and recipes stay yours. MADE FOR IPHONE AND IPAD The full library, editor, and recipes on iPhone; editing panels beside the photo on iPad. YOUR FILES, YOUR PRIVACY Editing happens on your device. Your photos never leave it unless you share them. Jepex also lives on the Mac and on the web, with the same recipes and the same account. Terms of Use: https://jepex.app/terms/ Privacy Policy: https://jepex.app/privacy/

Screenshots

X Sim Lab4 screens
Jepex4 screens

Verdict

The call

The clearest difference is price: Jepex at Free against X Sim Lab's $17.99. Jepex also leads on update cadence (weekly vs every 3 weeks). X Sim Lab's advantage is in-app purchases (none vs 2). On ads, device support 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

Jepex is free to download; X Sim Lab costs $17.99 up front. Jepex sells 2 in-app purchases, starting at $8.99 per month. X Sim Lab asks for nothing beyond the download.

UpkeepUpdate frequency

X Sim Lab ships an update every 3 weeks, Jepex weekly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
X Sim Lab versus Jepex: the parameters behind the verdict, then further details
ParameterX Sim LabJepex
Price$17.99Free — better
Rating3.5 (2 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size67 MB40 MB
Age rating4+4+
DeveloperDaniel PangerlKarto SIA

In-app purchases

None

X Sim Lab

No in-app purchases

2 purchases

Jepex

Subscriptions2
  • Jepex Pro Monthly$8.991 Month
  • Jepex Pro Annual$44.991 Year

Questions

Is X Sim Lab free?
X Sim Lab costs $17.99, with no in-app purchases.
Is Jepex free?
Jepex is free to download, with in-app purchases available.
Do X Sim Lab or Jepex have ads?
Neither X Sim Lab nor Jepex shows ads.
Which is updated more often, X Sim Lab or Jepex?
X Sim Lab ships an update every 3 weeks, and Jepex weekly. Most recently, X Sim Lab was updated on November 3, 2026 and Jepex on October 29, 2026.

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