# Darkroom Clock vs SmartLab35

The clearest difference is update cadence: SmartLab35 at every 5 weeks against Darkroom Clock's every 3 months. Darkroom Clock's advantage is iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Darkroom Clock ships an update every 3 months, SmartLab35 every 5 weeks. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Darkroom Clock | SmartLab35 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (84 ratings)](https://appshunter.io/ios/app/darkroom-clock/id1401045393/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 23 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Adam Fowler](https://appshunter.io/developer/1216484604) | [SANTIAGO FRANCISCO RAMIREZ SONNTAG](https://appshunter.io/developer/1721708676) |

## 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


### SmartLab35

[App page](https://appshunter.io/ios/app/smartlab35/id6474482009)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Darkroom Clock free?

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

### Is SmartLab35 free?

SmartLab35 is free to download, with no in-app purchases.

### Do Darkroom Clock or SmartLab35 have ads?

Neither Darkroom Clock nor SmartLab35 shows ads.

### Which is updated more often, Darkroom Clock or SmartLab35?

Darkroom Clock ships an update every 3 months, and SmartLab35 every 5 weeks. Most recently, Darkroom Clock was updated on September 16, 2026 and SmartLab35 on September 9, 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.*