# Darkroom Companion: Dev Timer — B&W film developing times

> B&W film developing times (iPhone/iPad app by Stanislav Grunfeld.)

- Source: https://appshunter.io/ios/app/darkroom-companion-dev-timer/id6782448907 (this page in markdown: same URL + `.md`)
- Developer: [Stanislav Grunfeld](https://appshunter.io/developer/1889988383)
- Category: Photo & Video, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 29 MB
- Languages: American English
- Released: 2026-06-24
- Data updated: 2026-09-28
- User reviews in markdown: https://appshunter.io/ios/app/darkroom-companion-dev-timer/id6782448907/reviews.md

## What is Darkroom Companion?

Free film developing times and a multi-step darkroom timer for black-and-white film. Built-in development chart for common film and developer combinations, dilution calculator, reciprocity calculator and a red night mode. No subscription, no ads.

Whether you are developing your first roll or your thousandth, it keeps the whole process in one place.

FREE — NO SUBSCRIPTION, NO ADS

• Multi-step timer — developer, stop bath, fixer, wash, wetting agent — with sound and haptic agitation cues
• Night (red) mode that preserves your dark adaptation
• Development time calculator for bath temperature and push/pull (± stops)
• Built-in database of times for common film and developer combinations
• Dilution calculator — how much concentrate, how much water
• Celsius or Fahrenheit, whichever you think in
• Reciprocity calculator for long exposures
• One custom recipe and the last three developments in the log

DARKROOM PRO — one-time unlock, no subscription

• Unlimited custom recipes and custom process steps
• Chemistry log — tracks expiry and exhaustion, warns you before you pour dead fixer
• Unlimited development history
• Data export and import

Times are indicative. Verify them against the manufacturer datasheet before real use — the app reminds you as well.

PRIVACY

The app collects only anonymous usage statistics — which screens are opened and which features are used — so it can be improved. It does not send your recipes, log, notes or anything else you type into it, and it uses no advertising identifiers.


## Version history (last 5 releases)

### 1.2.1 — 2026-09-13

No changes inside the app. This version only updates the store listing, so it is clear at a glance what the app does and that the timer and the time database are free.

### 1.2.0 — 2026-09-02

The app now collects anonymous usage statistics — which screens are opened and which features are used. It helps show what is worth developing further. Your recipes, log and notes are never sent anywhere.

### 1.1.1 — 2026-08-15

Minor fixes. Confirmation and input dialogs now close reliably in every situation.

### 1.1.0 — 2026-08-08

The app is now free.

The timer, both calculators and the built-in recipes are yours for good, at no cost. If you want unlimited custom recipes, a chemistry log and your full development history, you can unlock Darkroom Pro with a single one-time purchase. No subscription.

### 1.0 — 2026-06-24

No release notes.

## More apps by Stanislav Grunfeld

- [Haffy: Dog Diary, Health & AI](https://appshunter.io/ios/app/haffy-dog-diary-health-and-ai/id6761500162)
- [IQ Test & Brain Tests: QuotIQ](https://appshunter.io/ios/app/iq-test-and-brain-tests-quotiq/id6803078714)

All apps by Stanislav Grunfeld: https://appshunter.io/developer/1889988383

## Related topics

[open micer timer](https://appshunter.io/ios/topics/open-micer-timer)

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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 2026-09-28.*