# Pocket Light Meter vs Massive Dev Chart Timer

The clearest difference is rating: Pocket Light Meter at 4.5 against Massive Dev Chart Timer's 3.7. Pocket Light Meter also leads on update cadence (fortnightly vs every 5 months) and review sentiment (87% vs 71%). Massive Dev Chart Timer's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.6). On price, ads, chart position and device support there is nothing between them.

Pocket Light Meter costs $9.99 and Massive Dev Chart Timer $9.99 up front. Pocket Light Meter sells 3 one-off in-app purchases. Massive Dev Chart Timer asks for nothing beyond the download.

Pocket Light Meter holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Pocket Light Meter has 1K ratings behind it against 54, so its average is the more settled of the two. Written reviews point the same way: 87% of Pocket Light Meter's written reviews are positive against 71% of Massive Dev Chart Timer's.

Pocket Light Meter ships an update fortnightly, Massive Dev Chart Timer every 5 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Pocket Light Meter | Massive Dev Chart Timer |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Rating | **[4.5 (1K ratings)](https://appshunter.io/ios/app/pocket-light-meter/id381698089/reviews)** | [3.7 (54 ratings)](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews) |
| Number of ratings | **1K** | 54 |
| Positive reviews | **87.1% of reviews** | 70.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | #34 | **#27** |
| Size | 34 MB | 14 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nuwaste studios](https://appshunter.io/developer/338524950) | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) |

## What reviewers say

### Pocket Light Meter

[App page](https://appshunter.io/ios/app/pocket-light-meter/id381698089)

**Currently charting:** #34 Top Paid · Photo & Video (US App Store)

This app functions as a portable light meter, essential for film photographers using manual cameras. It accurately measures reflected light and provides reciprocity calculations for precise exposure control.

**Highlights:** Portable light meter, Reflected light measurement, Reciprocity calculations, Indispensable for film photography, Manual camera compatible

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ads remover | $1.99 | one-time |
| pint for the developer and get rid of the ads | $5.99 | one-time |
| donation to the developer | $5.99 | one-time |

**What reviewers like**

- 👍 Accurate light metering
- 📷 Useful for film photography
- 🔍 Spot metering feature
- 🔧 Customizable settings
- 🔋 Always available on phone

**What reviewers complain about**

- 🐛 Freezes or crashes in low light or with recent iOS updates
- 🔍 Unclear if spot or average metering
- 📊 Outdated user interface design
- 🔌 Ads can be distracting

**Reported bugs**

- Crashes or freezes with recent iOS updates
- Inconsistent metering in low light conditions
- Issues with saving metering data to photos

**Requested features**

- Add histogram display
- Implement manual mode to lock aperture/shutter
- Support for flash metering
- Improve low-light performance
- Provide more metering mode options (spot, center-weighted, etc.)


### Massive Dev Chart Timer

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

**Currently charting:** #27 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


## Frequently asked questions

### Is Pocket Light Meter free?

Pocket Light Meter costs $9.99, and also offers in-app purchases.

### Is Massive Dev Chart Timer free?

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

### Which has better reviews, Pocket Light Meter or Massive Dev Chart Timer?

Pocket Light Meter is rated higher. Pocket Light Meter averages 4.5 out of 5 from 1K ratings, while Massive Dev Chart Timer averages 3.7 from 54 ratings.

### Do Pocket Light Meter or Massive Dev Chart Timer have ads?

Neither Pocket Light Meter nor Massive Dev Chart Timer shows ads.

### Which is updated more often, Pocket Light Meter or Massive Dev Chart Timer?

Pocket Light Meter ships an update fortnightly, and Massive Dev Chart Timer every 5 months. Most recently, Pocket Light Meter was updated on October 7, 2026 and Massive Dev Chart Timer on October 5, 2026.

### Which is more popular, Pocket Light Meter or Massive Dev Chart Timer?

Pocket Light Meter currently peaks at #34 in the App Store charts, and Massive Dev Chart Timer at #27. 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.*