# Zone System vs Safelight Darkroom Timer

The clearest difference is price: Safelight Darkroom Timer at Free against Zone System's $1.99. Safelight Darkroom Timer also leads on iOS requirement (15.1 vs 17). Zone System's advantage is in-app purchases (none vs 2) and chart position (#192 vs unranked). On ads and device support there is nothing between them.

Safelight Darkroom Timer is free to download; Zone System costs $1.99 up front. Safelight Darkroom Timer sells 2 in-app purchases, starting at $2.99 per 7 days. Zone System asks for nothing beyond the download.

## The numbers

| Metric | Zone System | Safelight Darkroom Timer |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/zone-system/id6741873549/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Paid | — |
| Best chart rank | **#192** | — |
| Size | 12 MB | 48 MB |
| Requires iOS | 17 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Davin Nguyen](https://appshunter.io/developer/1680398335) | [Nhu Nam Vo](https://appshunter.io/developer/1895450103) |

## What reviewers say

### Zone System

[App page](https://appshunter.io/ios/app/zone-system/id6741873549)

**Currently charting:** #192 Top Paid · Photo & Video (US App Store)

This tool simplifies Ansel Adams' exposure and development method for photographers. It helps measure shadows and highlights, calculate aperture and development times, and preview results with film stock presets.

**Highlights:** Measure shadows and highlights, Aperture and development calculations, Preview results with film presets, ISO and EV calculations, Simplified Zone System application

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Safelight Darkroom Timer

[App page](https://appshunter.io/ios/app/safelight-darkroom-timer/id6766540911)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Safelight Pro | $2.99 | per 7 days |
| Safelight Pro | $19.99 | per year |


## Frequently asked questions

### Is Zone System free?

Zone System costs $1.99, with no in-app purchases.

### Is Safelight Darkroom Timer free?

Safelight Darkroom Timer is free to download, with in-app purchases available.

### Do Zone System or Safelight Darkroom Timer have ads?

Neither Zone System nor Safelight Darkroom Timer shows ads.

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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.*