# Massive Dev Chart Timer vs myLightMeter PRO

The clearest difference is rating: myLightMeter PRO at 4.8 against Massive Dev Chart Timer's 3.7. myLightMeter PRO also leads on update cadence (every 5 days vs every 5 months) and price ($4.99 vs $9.99). Massive Dev Chart Timer's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On ads, in-app purchases, monetization model and chart position there is nothing between them.

Massive Dev Chart Timer costs $9.99 and myLightMeter PRO $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

myLightMeter PRO holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: myLightMeter PRO has 1.1K 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 90% of myLightMeter PRO's.

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

## The numbers

| Metric | Massive Dev Chart Timer | myLightMeter PRO |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | [3.7 (54 ratings)](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews) | **[4.8 (1.1K ratings)](https://appshunter.io/ios/app/mylightmeter-pro/id583922375/reviews)** |
| Number of ratings | 54 | **1.1K** |
| Positive reviews | 70.8% of reviews | **90.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Best chart rank | #20 | **#11** |
| Size | 14 MB | 53 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) | [David Quiles](https://appshunter.io/developer/578971109) |

## What reviewers say

### Massive Dev Chart Timer

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

**Currently charting:** #20 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


### myLightMeter PRO

[App page](https://appshunter.io/ios/app/mylightmeter-pro/id583922375)

**Currently charting:** #11 Top Paid · Photo & Video (US App Store)

This app provides precise exposure metering for photographers, supporting both digital and analog workflows. It offers a comprehensive set of manual controls and advanced tools like a hyperfocal distance calculator.

**Highlights:** Extended low-light sensitivity, Incident and reflected metering, Manual exposure control, Hyperfocal distance calculator, Save and review exposure data, Extract exposure data from photos

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate and reliable
- 👍 Convenient and easy to use
- 🔍 Useful for vintage/manual cameras
- 💡 Helpful for learning photography
- ⭐ Excellent value for money

**What reviewers complain about**

- 🐛 Crashes and bugs in recent versions
- 🔍 Spot metering mode not precise enough
- 🔧 Needs more customization options
- 🔋 Volume control issues

**Reported bugs**

- Crashes on startup
- Inconsistent behavior between free and pro versions
- Incorrect shutter speed and aperture options for some cameras

**Requested features**

- Ability to lock shutter speed and aperture
- Smaller spot metering area
- Support for more film/sensor formats
- Improved incident metering with diffuser


## Frequently asked questions

### Is Massive Dev Chart Timer free?

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

### Is myLightMeter PRO free?

myLightMeter PRO costs $4.99, with no in-app purchases.

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

myLightMeter PRO is rated higher. Massive Dev Chart Timer averages 3.7 out of 5 from 54 ratings, while myLightMeter PRO averages 4.8 from 1.1K ratings.

### Do Massive Dev Chart Timer or myLightMeter PRO have ads?

Neither Massive Dev Chart Timer nor myLightMeter PRO shows ads.

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

Massive Dev Chart Timer ships an update every 5 months, and myLightMeter PRO every 5 days. Most recently, Massive Dev Chart Timer was updated on September 23, 2026 and myLightMeter PRO on September 24, 2026.

### Which is more popular, Massive Dev Chart Timer or myLightMeter PRO?

Massive Dev Chart Timer currently peaks at #20 in the App Store charts, and myLightMeter PRO at #11. Chart position reflects recent download velocity rather than total install base.

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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.*