# Massive Dev Chart Timer vs The Darkroom Lab

The clearest difference is price: The Darkroom Lab at Free against Massive Dev Chart Timer's $9.99. The Darkroom Lab also leads on update cadence (every 3 weeks vs every 5 months). Massive Dev Chart Timer's advantage is review sentiment (71% vs 45%) and chart position (#28 vs unranked). On rating, ratings volume, ads and in-app purchases there is nothing between them.

The Darkroom Lab is free to download; Massive Dev Chart Timer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.7 for Massive Dev Chart Timer against 3.7 for The Darkroom Lab. Both are backed by a comparable volume of ratings — 54 and 90 respectively. Written reviews are what separate them: 71% of Massive Dev Chart Timer's written reviews are positive against 45% of The Darkroom Lab's.

Massive Dev Chart Timer ships an update every 5 months, The Darkroom Lab every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Massive Dev Chart Timer | The Darkroom Lab |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (54 ratings)](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews) | [3.7 (90 ratings)](https://appshunter.io/ios/app/the-darkroom-lab/id1528784514/reviews) |
| Number of ratings | 54 | **90** |
| Positive reviews | **70.8% of reviews** | 44.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#28** | — |
| Size | 14 MB | 52 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) | [The Darkroom](https://appshunter.io/developer/1528784516) |

## What reviewers say

### Massive Dev Chart Timer

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

**Currently charting:** #28 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


### The Darkroom Lab

[App page](https://appshunter.io/ios/app/the-darkroom-lab/id1528784514)

View your developed film photos as soon as they are scanned. This app connects you to a professional film developing service with decades of experience.

**Highlights:** View scanned film photos, Professional film developing, Experienced lab professionals, Access photos as soon as scanned

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Massive Dev Chart Timer free?

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

### Is The Darkroom Lab free?

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

### Which has better reviews, Massive Dev Chart Timer or The Darkroom Lab?

Massive Dev Chart Timer and The Darkroom Lab are both rated 3.7 out of 5 on the App Store, from 54 and 90 ratings respectively.

### Do Massive Dev Chart Timer or The Darkroom Lab have ads?

Neither Massive Dev Chart Timer nor The Darkroom Lab shows ads.

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

Massive Dev Chart Timer ships an update every 5 months, and The Darkroom Lab every 3 weeks. Most recently, Massive Dev Chart Timer was updated on October 14, 2026 and The Darkroom Lab on October 7, 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.*