# Massive Dev Chart Timer — Film Developing Tool

> Offline film development chart and multi-step timer for photographers. (iPhone/iPad app by Freestyle Photo & Imaging.)

- Source: https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770 (this page in markdown: same URL + `.md`)
- Developer: [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988)
- Category: Photo & Video, Utilities
- Price: $9.99
- Rating: 3.70/5 from 54 App Store ratings · 186 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 14 MB
- Languages: American English, Czech, French (France), German (Germany), Japanese, Polish, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2010-11-12
- Data updated: 2026-08-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews.md

## What is Massive Dev Chart Timer?

The Massive Dev Chart is the world's largest film development chart with easy to use multi step timer and darkroom support for iPhone and iPad. Watch the instructional video at: https://www.youtube.com/watch?v=P915z6THiY8. 

*** Features *** 
• Offline copy of The Massive Dev Chart in your pocket 
• Multi Step Timer with sound notifications
• Customizable agitation scheme 
• Darkroom themes 
• Dilution Mixer 
• Support for two-step development and two-step fixing 
• Support for optional hypoclear and photo flo steps 
• Automated development time/temperature compensation

## Key features

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

## Chart rankings

- #18 in Top Paid · Photo & Video (US App Store)

## What do users think of Massive Dev Chart Timer?

Overall sentiment: mixed

**Pros**

- 📚 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
- 🔄 Temperature-time conversion calculator
- 💾 Ability to save custom formulas
- 📖 Extensive reference data in portable format

**Cons**

- 🚫 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
- 📱 iPad version significantly inferior to iPhone
- ⚠️ Missing many common film stocks
- 🔧 Limited customization of process step names
- 📵 Timer doesn't run in background (iOS 8+)
- 💡 Rigid preset steps without full flexibility

**Commonly 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
- UI elements overlap on older iPhone models
- Safelight mode white banner blocks display on iPad
- Crashes during development process
- Home screen line emits bright light in darkroom mode
- App incompatible with newer iOS versions on older devices
- Notes don't word wrap properly
- Inconsistent film/developer availability between iPhone and iPad

**Most 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
- Volume calculator for stop bath and fixer
- Background timer functionality
- Custom step name editing
- Pull/push development times
- Stand development support with hour-based timing
- Apple Watch app
- Syncing between iPhone and iPad
- Fahrenheit temperature option
- Additional common film stocks (Portra, Fuji 400H, Ektar)
- Ability to add films not in database to custom times

## Recent user reviews (10 of 186)

All indexed reviews: https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews.md

### 1/5 — Dark mode is broken

*2026-06-30, version 4.8.0*

In a recent update, when using the app in my dark room to develop sheet film, when I select, dark mode, there is still a bright white dynamic island where the mode selector is, contributing significant light pollution into my space. I’ve had to tape it off with black tape to make it usable. Why did you implement this? Is it a bug?!

### 1/5 — Dark mode no longer dark!

*2026-06-30, version 4.8.0*

In the darkroom, I rely on the ability to turn the screen of my iPhone to dark mode when using this app to time film development (sheet film, in trays). But in a recent update, there is now a large white “Dynamic Island” where the mode buttons are that cannot be turned dark, so there’s significant light pollution in my workspace when developing film, and I have to put black tape over that part of the screen!! WHY did you implement this?? Is it a bug or a “feature”??!

### 2/5 — Could be so much better

*2026-06-20, version 4.8.0*

Timer works fine, that’s the important part. But the UX around the whole app is just bad. It hard to scan the list in My Times (why no search?), can’t bulk delete, can’t sort or group.
No separate utilities like the volume mixer.
Please take some time to improve the app, there’s so much potential here.

### 3/5 — Good overall

*2026-06-05, version 4.8.0*

Good app but turns music off while your using it

### 1/5 — GROSSE ARNAQUE

*2026-03-20*

Honnêtement je suis très très déçu, payer 9€ pour de fausses informations et en plus incomplètes car l’application ne donne que le temps de développement pour 20 C. C’est très moche de faire ça je vous déconseille fortement cette application sincèrement fuyez !

### 5/5 — Très bien faite et très pratique

*2026-02-22*

J’utilise cette application depuis des années et j’en suis très satisfait!

Ce qui manque toujours, c’est la possibilité de voir avec quel révélateur sont compatibles les films. Autrement dit, on choisit d’abord le révélateur et puis la pellicule.

### 5/5 — What gives?

*2026-01-02, version 4.6.0*

I don’t know what the bad reviews are about. Honestly, this app has met my every need. I prefer that recipes are pre-programmed instead of having to search randomly for experimental recipes in the other app.

### 1/5 — Leider nicht mehr brauchbar

*2026-01-01*

Ich nutze die App bereits seit Jahren, aber seit dem letzten Update häufen sich die Pannen. Der Timer setzt sich mitten drin zurück ins Hauptmenü oder aber er friert ohne ersichtlichen Grund ein, auch im Flugmodus. Dann ist die einzige Option, die App zu beenden und neu zu starten. Nachdem mir das zwei Filme ruiniert hat, habe ich eine analoge Stoppuhr daneben gelegt und ohne diese Uhr wären noch zwei weitere Filme falsch entwickelt worden. Das ist sehr schade und ich hoffe sehr, dass diese Bugs möglichst bald ausgebügelt werden, sonst wechsle ich zur Konkurrenz.
Der Tipp, die App zu löschen, das iPad neu zu starten und die App neu zu installieren, hat keine Verbesserung gebracht.

### 1/5 — Put the dilutions back for HC110

*2025-11-25, version 4.6.0*

I paid for this because it had dilutions for HC110. It is now removed. If you don’t put the feature back in you owe people a refund.

### 5/5 — Extra !

*2025-11-19*

Une fois que l’on a goûté à cette app, difficile de s’en priver. C’est très pratique à utiliser. Je ne développe plus un film sans ce timer. 
Quoi lui reprocher ? Une ergonomie à améliorer, quelques combinaisons de plus ou une entrée par révélateur et pas uniquement par film. Mais franchement, je pinaille tant l’appli rend service !

## Frequently asked questions about Massive Dev Chart Timer

### What does the Massive Dev Chart Timer app do?

The app provides an offline copy of the world's largest film development chart, along with a multi-step timer. It helps photographers manage their film developing process with features like customizable agitation, darkroom themes, and dilution mixing.

### What are the key features of this film developing app?

Key features include an offline film development chart, a multi-step timer with sound notifications, customizable agitation schemes, darkroom themes, a dilution mixer, and support for various development and fixing steps. It also offers automated compensation for development time and temperature.

### How much does the Massive Dev Chart Timer app cost?

Based on the provided information, the app is a paid application. There are no mentions of in-app purchases or advertisements, indicating a one-time purchase model.

### What devices is the Massive Dev Chart Timer app compatible with?

The app is designed for iPhone and iPad devices. It leverages the capabilities of these Apple platforms to provide its film developing and timing functionalities.

### Who would benefit from using the Massive Dev Chart Timer app?

This app is ideal for amateur and professional photographers who engage in film development at home. It's particularly useful for those who want a convenient, offline reference and a precise timer for their darkroom processes.

## Version history (last 5 releases)

### 4.8.1 — 2026-07-09

Database update - new recipes.

### 4.8.0 — 2026-04-17

Database update - New film/developer combinations

### 4.7.0 — 2026-02-14

Film & developer database updated.

### 4.6.0 — 2025-05-07

Update film database.
Update Icons.
Minor bug fixes.

### 4.5 — 2022-12-15

Latest database.
Increased range of time percentage values.

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## More apps by Freestyle Photo & Imaging

- [Darkroom Formulas](https://appshunter.io/ios/app/darkroom-formulas/id807461207)
- [f-Stop Printing Calculator](https://appshunter.io/ios/app/f-stop-printing-calculator/id858392735)
- [Darkroom Lab Timer](https://appshunter.io/ios/app/darkroom-lab-timer/id1020149692)
- [Phase Timer Pro](https://appshunter.io/ios/app/phase-timer-pro/id6443657713)

All apps by Freestyle Photo & Imaging: https://appshunter.io/developer/1786429988

## Related topics

[film developer timer](https://appshunter.io/ios/topics/film-developer-timer) · [darkroom lab timer](https://appshunter.io/ios/topics/darkroom-lab-timer) · [darkroom timer 3](https://appshunter.io/ios/topics/darkroom-timer-3) · [film developer](https://appshunter.io/ios/topics/film-developer) · [film developer timer pro](https://appshunter.io/ios/topics/film-developer-timer-pro) · [safelight darkroom timer](https://appshunter.io/ios/topics/safelight-darkroom-timer) · [the darkroom lab](https://appshunter.io/ios/topics/the-darkroom-lab) · [darkroom timer](https://appshunter.io/ios/topics/darkroom-timer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*