# Massive Dev Chart Timer vs Light Panel Pro

The clearest difference is rating: Light Panel Pro at 4.5 against Massive Dev Chart Timer's 3.7. Light Panel Pro also leads on price ($4.99 vs $9.99) and update cadence (every 6 weeks vs every 5 months). Massive Dev Chart Timer's advantage is in-app purchases (none vs 2) and chart position (#25 vs unranked). On ratings volume and ads there is nothing between them.

Massive Dev Chart Timer costs $9.99 and Light Panel Pro $4.99 up front. Light Panel Pro sells 2 one-off in-app purchases. Massive Dev Chart Timer asks for nothing beyond the download.

Light Panel Pro holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 54 and 68 respectively. Written reviews point the same way: 71% of Massive Dev Chart Timer's written reviews are positive against 85% of Light Panel Pro's.

Massive Dev Chart Timer ships an update every 5 months, Light Panel Pro every 6 weeks. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Massive Dev Chart Timer | Light Panel Pro |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | [3.7 (54 ratings)](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770/reviews) | **[4.5 (68 ratings)](https://appshunter.io/ios/app/light-panel-pro/id1535462864/reviews)** |
| Number of ratings | 54 | **68** |
| Positive reviews | 70.8% of reviews | **85.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#25** | — |
| Size | 14 MB | 14 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) | [Mike Woolley](https://appshunter.io/developer/1535462866) |

## What reviewers say

### Massive Dev Chart Timer

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

**Currently charting:** #25 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


### Light Panel Pro

[App page](https://appshunter.io/ios/app/light-panel-pro/id1535462864)

Transform your device into a professional lighting tool for creative projects, film scanning, and video calls. Adjust brightness, color temperature, and RGB hues to enhance any scene. Give your existing technology a vibrant new purpose.

**Highlights:** Pocket-sized professional light, Creative lighting control, Film scanning, Video call enhancement, Brightness adjustment, Kelvin temperature control, RGB color control

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me A Coffee | $2.99 | one-time |
| Remote Control | $9.99 | one-time |


## Frequently asked questions

### Is Massive Dev Chart Timer free?

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

### Is Light Panel Pro free?

Light Panel Pro costs $4.99, and also offers in-app purchases.

### Which has better reviews, Massive Dev Chart Timer or Light Panel Pro?

Light Panel Pro is rated higher. Massive Dev Chart Timer averages 3.7 out of 5 from 54 ratings, while Light Panel Pro averages 4.5 from 68 ratings.

### Do Massive Dev Chart Timer or Light Panel Pro have ads?

Neither Massive Dev Chart Timer nor Light Panel Pro shows ads.

### Which is updated more often, Massive Dev Chart Timer or Light Panel Pro?

Massive Dev Chart Timer ships an update every 5 months, and Light Panel Pro every 6 weeks. Most recently, Massive Dev Chart Timer was updated on October 9, 2026 and Light Panel Pro on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*