# Massive Dev Chart Timer vs Darkroom Assistant

The clearest difference is price: Darkroom Assistant at Free against Massive Dev Chart Timer's $9.99. Darkroom Assistant also leads on update cadence (every 4 days vs every 5 months). Massive Dev Chart Timer's advantage is in-app purchases (none vs 1) and chart position (#38 vs unranked). On ads and device support there is nothing between them.

Darkroom Assistant is free to download; Massive Dev Chart Timer costs $9.99 up front. Darkroom Assistant sells 1 in-app purchase, starting at $39.99 per year. Massive Dev Chart Timer asks for nothing beyond the download.

Massive Dev Chart Timer ships an update every 5 months, Darkroom Assistant every 4 days. The most recent releases landed on October 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Massive Dev Chart Timer | Darkroom Assistant |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.7 (54 ratings)](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 70.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Paid | — |
| Best chart rank | **#38** | — |
| Size | 14 MB | 54 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) | [Distinction Photo LLC](https://appshunter.io/developer/1868141640) |

## What reviewers say

### Massive Dev Chart Timer

[App page](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770)

**Currently charting:** #38 Top Paid · Photo & Video (US App Store)

This app provides an offline film development chart and a multi-step timer for photographers. It includes customizable agitation, darkroom themes, and support for various developing and fixing steps. It also offers automated compensation for development time and temperature.

**Highlights:** Offline film development chart, Multi-step timer with sound notifications, Customizable agitation schemes, Darkroom themes, Dilution mixer, Automated time/temperature compensation

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

**In-app purchases:** none

**What reviewers like**

- 📚 Comprehensive film and developer database
- ⏱️ Reliable timer with agitation reminders
- 🎯 Easy-to-use interface for darkroom work
- 🌙 Darkroom mode with red/black display
- ✏️ Customizable development times and profiles

**What reviewers complain about**

- 🚫 Black and white film only (no color film support)
- 🐛 Recent update broke HC110 dilution display
- 🐛 App crashes on certain devices/iOS versions
- 💰 Price point ($8.99-$11.99) for limited functionality
- 🔍 Poor search functionality for films

**Reported bugs**

- HC110 dilution section displays only letters, not ratios
- Dilution ratios not calculating when solution amount adjusted
- App crashes after selecting film speed
- Crashes on iPad with new update
- Timer display shows three dots instead of seconds

**Requested features**

- Color film support (C-41, E-6, ECN-2 processes)
- Search functionality by film brand/name
- Ability to add custom process steps (presoak, toning)
- Individual agitation control per development stage
- Continuous agitation option


### Darkroom Assistant

[App page](https://appshunter.io/ios/app/darkroom-assistant/id6757661002)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Darkroom Assistant Standard | $39.99 | per year |


## Frequently asked questions

### Is Massive Dev Chart Timer free?

Massive Dev Chart Timer costs $9.99, with no in-app purchases.

### Is Darkroom Assistant free?

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

### Do Massive Dev Chart Timer or Darkroom Assistant have ads?

Neither Massive Dev Chart Timer nor Darkroom Assistant shows ads.

### Which is updated more often, Massive Dev Chart Timer or Darkroom Assistant?

Massive Dev Chart Timer ships an update every 5 months, and Darkroom Assistant every 4 days. Most recently, Massive Dev Chart Timer was updated on October 1, 2026 and Darkroom Assistant 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.*