# Massive Dev Chart Timer vs Darkr

The clearest difference is price: Darkr at Free against Massive Dev Chart Timer's $9.99. Darkr also leads on rating (4.7 vs 3.7) and update cadence (every 3 weeks vs every 5 months). Massive Dev Chart Timer's advantage is in-app purchases (none vs 11) and chart position (#18 vs unranked). On review sentiment, ads and device support there is nothing between them.

Darkr is free to download; Massive Dev Chart Timer costs $9.99 up front. Darkr sells 11 one-off in-app purchases. Massive Dev Chart Timer asks for nothing beyond the download.

Darkr holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Darkr has 3.5K ratings behind it against 54, so its average is the more settled of the two. Written reviews point the same way: 71% of Massive Dev Chart Timer's written reviews are positive against 75% of Darkr's.

Massive Dev Chart Timer ships an update every 5 months, Darkr every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Massive Dev Chart Timer | Darkr |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (54 ratings)](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews) | **[4.7 (3.5K ratings)](https://appshunter.io/ios/app/darkr-black-and-white-filter/id1182702869/reviews)** |
| Number of ratings | 54 | **3.5K** |
| Positive reviews | 70.8% of reviews | **74.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#18** | — |
| Size | 14 MB | 109 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) | [Marcus Carlsson](https://appshunter.io/developer/905479758) |

## What reviewers say

### Massive Dev Chart Timer

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

**Currently charting:** #18 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


### Darkr

[App page](https://appshunter.io/ios/app/darkr-black-and-white-filter/id1182702869)

This app simulates the experience of a traditional darkroom, allowing you to edit photos in black and white with tools like dodge, burn, and toning. It also features a manual camera with different format models to help you learn photography techniques.

**Highlights:** Darkroom simulation, Black and white editing, Dodge and burn tools, Image toning (Selenium, Cyanotype, Sepia), Layer-based effects, Manual camera with tilt/shift, Multiple camera formats

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Many similar layers | Free | one-time |
| Large-format camera | $1.99 | one-time |
| Medium-format camera | $1.99 | one-time |
| Loyal Master | $1.99 | one-time |
| Loyal photographer | $1.99 | one-time |
| Film with grain | $1.99 | one-time |
| Layers | $2.99 | one-time |
| Pro+ | $2.99 | one-time |
| Tone the image | $2.99 | one-time |
| Pro | $3.99 | one-time |
| Full Access | $4.99 | one-time |

**What reviewers like**

- 🚀 Excellent black and white photography
- 👍 Realistic darkroom experience
- 💡 Unique and creative features
- 🎨 Impressive photo editing capabilities
- 🤓 Helpful tutorials and instructions

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🤔 Confusing and unintuitive interface
- 💸 Paywall for full functionality
- 📱 Compatibility issues on certain devices
- 🔍 Lack of clear guidance and documentation

**Reported bugs**

- Upside down camera orientation
- Purchased features not working across devices
- Masking and layering tools not functioning properly

**Requested features**

- Ability to import and edit existing photos
- More film and paper emulation options
- Landscape mode support for iPad
- Customizable controls and UI
- Improved dodge and burn tools


## Frequently asked questions

### Is Massive Dev Chart Timer free?

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

### Is Darkr free?

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

### Which has better reviews, Massive Dev Chart Timer or Darkr?

Darkr is rated higher. Massive Dev Chart Timer averages 3.7 out of 5 from 54 ratings, while Darkr averages 4.7 from 3.5K ratings.

### Do Massive Dev Chart Timer or Darkr have ads?

Neither Massive Dev Chart Timer nor Darkr shows ads.

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

Massive Dev Chart Timer ships an update every 5 months, and Darkr every 3 weeks. Most recently, Massive Dev Chart Timer was updated on September 23, 2026 and Darkr on September 24, 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.*