# Grainotype: Film Light Meter — Roll log, darkroom timer, EXIF

> Roll log, darkroom timer, EXIF (iPhone/iPad app by Matthieu Duc-Dodon.)

- Source: https://appshunter.io/ios/app/grainotype-film-light-meter/id6830565935 (this page in markdown: same URL + `.md`)
- Developer: [Matthieu Duc-Dodon](https://appshunter.io/developer/6815886354)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 18 MB
- Languages: American English, French (France)
- Released: 2026-11-06
- Data updated: 2026-11-07

## What is Grainotype?

Grainotype is a light meter and a notebook for people who shoot film.

METER
• Reflected light meter using your iPhone or iPad camera: average, spot and zone system
• Aperture priority, shutter priority, or match-needle with both set by hand
• Snaps to the speeds printed on your camera's dial and tells you how much to open or close
• Exposure compensation and calibration; filter factors and bellows extension (Pro)
• Reciprocity corrections from manufacturer data for long exposures (Pro)
• Sunny 16 guide when you'd rather meter by eye
• Light planner: golden and blue hours, the sun's path and the exposure to expect, anywhere (Pro; today's times free)

LOG
• Every frame with aperture, speed, lens, filter, time and place
• One tap from the Lock Screen, Dynamic Island, widgets, Control Center, the Action button, Siri or your Apple Watch
• Quick notes like "f/8 1/250 28mm red - Léa on the bridge" understood on device
• Dictate a frame to Siri, and search every frame in plain words: "50mm in Nantes in June"
• Contact sheets and frame logs; maps and printable roll sheets (Pro)
• Bring your rolls from other film-logging apps (JSON, CSV, XML) or any spreadsheet; export every roll to CSV
• At the lab: how long it has been there and how long that lab usually takes; what each roll costs (Pro)
• With Apple Intelligence, on supported devices: notes and searches understood on device, and a suggested title and a few lines for each roll, drawn from your notes and places, to keep or not

DEVELOP
• Timers for black & white, C-41, E-6 and ECN-2 with every bath and agitation called out
• Temperature adjustment from the film makers' own charts, push and pull, dilution and tank volumes
• Safelight red mode and a blackout mode for total darkness
• Follow the timer on your Apple Watch, with a tap on the wrist for each agitation
• Chemistry that knows its kit: capacity, shelf life, and the longer times its maker gives for each reused roll (Pro)

PRINT
• F-stop print timer with test strips and split-grade printing (Pro)
• Dodges and burns drawn on the negative itself, saved with the frame for the next print (Pro)
• Switches your enlarger on and off through a smart plug in the Home app (HomeKit) (Pro)

CONTACT SHEET
• Photograph a strip of negatives on a light table: every frame appears in positive, on its own notes (Pro)
• A live negative viewer to check a strip before printing
• Share a roll as a contact sheet, your best frames or one print with its settings, sized for posts and stories

SCAN
• Scan your negatives with your iPhone camera: full-resolution positives, orange mask removed, tagged with their EXIF (Pro)
• Write EXIF, date and location into your scans without re-compressing them
• Photos places each scan on the day and at the place you shot it
• Camera-scanned raw files get an .xmp sidecar read by common raw editors, raw files untouched

LIBRARY
• 80+ film stocks with speeds, processes, formats and reciprocity data, and your own films (Pro, one free)
• Your film stock with expiry dates (Pro)
• Your cameras and lenses, statistics about what and how you shoot, and what it costs (Pro)

PRIVATE
No account, no ads, no tracking. Your rolls stay on your devices and in your iCloud.

Grainotype Pro unlocks unlimited rolls, the contact sheet, negative scanning, the light planner, EXIF and sidecars for scans, zone system, reciprocity corrections, filter and bellows factors, the print timer and its maps, chemistry, unlimited recipes, statistics and costs, roll sheets and maps, your own films and your film stock. Yearly subscription with a one-week free trial, monthly subscription, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period.

Terms of Use: https://grainotype.duc-dodon.fr/terms.html
Apple's standard licence agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy: https://grainotype.duc-dodon.fr/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Grainotype Pro - Yearly | $24.99 | per year |
| Grainotype Pro - Monthly | $4.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Grainotype Pro - Lifetime | $59.99 | one-time |


## Is Grainotype safe?

Not enough ratings yet to assess Grainotype.

## Is Grainotype legit?

Grainotype: Film Light Meter has limited verification signals. The AppsHunter Legitimacy Score for Grainotype is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-11-06

No release notes.

## More apps by Matthieu Duc-Dodon

- [Mirelya : Menopause Tracker](https://appshunter.io/ios/app/mirelya-menopause-tracker/id6815886352)

All apps by Matthieu Duc-Dodon: https://appshunter.io/developer/6815886354

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-07.*