# Darkroom Clock vs ProLab Film Developer

The clearest difference is price: Darkroom Clock at Free against ProLab Film Developer's $7.99. Darkroom Clock also leads on ratings volume (84 vs 3) and iOS requirement (11.0 vs 15.1). ProLab Film Developer's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 83%). On update cadence, ads, in-app purchases and device support there is nothing between them.

Darkroom Clock is free to download; ProLab Film Developer costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProLab Film Developer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Darkroom Clock has 84 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 83% of Darkroom Clock's written reviews are positive against 100% of ProLab Film Developer's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Darkroom Clock | ProLab Film Developer |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | [4.6 (84 ratings)](https://appshunter.io/ios/app/darkroom-clock/id1401045393/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prolab-film-developer/id6759682425/reviews)** |
| Number of ratings | **84** | 3 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Paid |
| Size | 7 MB | 189 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Adam Fowler](https://appshunter.io/developer/1216484604) | [James Maher](https://appshunter.io/developer/1880183966) |

## What reviewers say

### Darkroom Clock

[App page](https://appshunter.io/ios/app/darkroom-clock/id1401045393)

This app provides a customizable timer for film and photo development, allowing users to create unique development recipes. It features a darkroom-safe mode, a clear display, and a full-screen start/stop button for ease of use. Receive notifications if a timer is running when you leave the app.

**Highlights:** Configurable development recipes, Darkroom mode for B&W paper, Clear information display, Full screen start/stop button, Running timer notifications

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ProLab Film Developer

[App page](https://appshunter.io/ios/app/prolab-film-developer/id6759682425)

Achieve consistent color film development at home with real-time adjustments for temperature and chemistry. This app eliminates guesswork by actively recalculating development times based on changing conditions, ensuring repeatable results without expensive equipment.

**Highlights:** Real-time time compensation, Chemistry tracking, Dynamic Time-Temperature Engine, Push processing support, Guided workflow, Supports major C-41 kits

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Darkroom Clock free?

Darkroom Clock is free to download, with no in-app purchases.

### Is ProLab Film Developer free?

ProLab Film Developer costs $7.99, with no in-app purchases.

### Which has better reviews, Darkroom Clock or ProLab Film Developer?

ProLab Film Developer is rated higher. Darkroom Clock averages 4.6 out of 5 from 84 ratings, while ProLab Film Developer averages 5.0 from 3 ratings.

### Do Darkroom Clock or ProLab Film Developer have ads?

Neither Darkroom Clock nor ProLab Film Developer shows ads.

### Which is updated more often, Darkroom Clock or ProLab Film Developer?

Darkroom Clock ships an update every 3 months, and ProLab Film Developer every 3 months. Most recently, Darkroom Clock was updated on September 16, 2026 and ProLab Film Developer on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*