Massive Dev Chart Timer vs LightBox Extra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Massive Dev Chart Timer
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.
- Offline film development chart
- Multi-step timer with sound notifications
- Customizable agitation schemes
- Darkroom themes
- Dilution mixer
- Automated time/temperature compensation
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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
LightBox Extra
Easily view 35mm negatives and slides on your iOS device. Customize the background for optimal viewing and the app remembers your preferred settings.
- View 35mm negatives and slides
- Customizable white background
- Background adjusts to negative/slide area
- Resizes for all iOS7 devices
- Remembers custom box sizes
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Use LightBox Extra to easily view 35mm negatives and slides. You can choose between a classic white background, or only have white where you place the negative/positive to avoid blinding yourself. Resizes itself to work on all iOS7 devices. You can resize the white boxes as needed, and next time you launch the app it will restore those.
Screenshots
Verdict
The clearest difference is price: LightBox Extra at Free against Massive Dev Chart Timer's $9.99. LightBox Extra also leads on iOS requirement (8.0 vs 12.0). Massive Dev Chart Timer's advantage is review sentiment (71% vs 28%) and rating (3.7 vs 2.3). On ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
LightBox Extra is free to download; Massive Dev Chart Timer costs $9.99 up front. LightBox Extra sells 1 one-off in-app purchase. Massive Dev Chart Timer asks for nothing beyond the download.
Massive Dev Chart Timer holds the better App Store score, 3.7 against 2.3. Both are backed by a comparable volume of ratings — 54 and 19 respectively. Written reviews point the same way: 71% of Massive Dev Chart Timer's written reviews are positive against 28% of LightBox Extra's.
Massive Dev Chart Timer ships an update every 5 months, LightBox Extra every 13 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | Massive Dev Chart Timer | LightBox Extra |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.7 (54 ratings) — better | 2.3 (19 ratings) |
| Positive reviews | 70.8% of reviews — better | 27.8% of reviews |
| Number of ratings | 54 — better | 19 |
| Update frequency | Every 5 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #29 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Freestyle Photo & Imaging | SkyCharts LLC |
Customer experience
Massive Dev Chart Timer
LightBox Extra
Bugs and requests
Massive Dev Chart Timer
Reported bugs
12 issues- 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
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- 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
Requested features
15 requests- 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
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- 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
LightBox Extra
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Massive Dev Chart Timer
No in-app purchases
LightBox Extra
- Remove Ads$0.99
Questions
Is Massive Dev Chart Timer free?
Is LightBox Extra free?
Which has better reviews, Massive Dev Chart Timer or LightBox Extra?
Do Massive Dev Chart Timer or LightBox Extra have ads?
Which is updated more often, Massive Dev Chart Timer or LightBox Extra?
Other comparisons
