Massive Dev Chart Timer vs Long Exposure Calculator
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
Long Exposure Calculator
Calculate precise exposure times for long-exposure photography with Neutral Density filters. Features a countdown timer for exposures over 10 seconds and supports up to 24 stops of ND filtration.
- ND filter exposure calculation
- Countdown timer
- Supports up to 24-stop ND filters
- Simple to use
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Long Exposure Calculator is a utility that helps you determine the correct exposure time/shutter speed when using Neutral Density filters. Features: - Very simple to use - Includes a countdown timer if the exposure time is 10 seconds or longer. - Supports up to 24-stops of ND filter iPhone, iPad, and iPod touch compatible.
Screenshots
Verdict
The clearest difference is price: Long Exposure Calculator at Free against Massive Dev Chart Timer's $9.99. Long Exposure Calculator also leads on rating (4.4 vs 3.7) and review sentiment (82% vs 71%). Massive Dev Chart Timer's advantage is in-app purchases (none vs 6) and ads (none vs shown). On ratings volume 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
Long Exposure Calculator is free to download; Massive Dev Chart Timer costs $9.99 up front. Long Exposure Calculator sells 6 one-off in-app purchases. Massive Dev Chart Timer asks for nothing beyond the download.
Long Exposure Calculator holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 55 and 64 respectively. Written reviews point the same way: 71% of Massive Dev Chart Timer's written reviews are positive against 82% of Long Exposure Calculator's.
Massive Dev Chart Timer ships an update every 5 months, Long Exposure Calculator every 19 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.
| Parameter | Massive Dev Chart Timer | Long Exposure Calculator |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.7 (55 ratings) | 4.4 (64 ratings) — better |
| Positive reviews | 70.8% of reviews | 81.7% of reviews — better |
| Number of ratings | 55 | 64 — better |
| Update frequency | Every 5 months — better | Every 19 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #28 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Freestyle Photo & Imaging | Junel Corales |
Customer experience
Massive Dev Chart Timer
Long Exposure Calculator
User reviews
Massive Dev Chart Timer
From 55 App Store ratingsWhat we love
- 📚 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
Room to improve
- 🚫 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
Long Exposure Calculator
From 64 App Store ratingsWhat we love
- 👍 Simple and intuitive interface
- 🚀 Fast and efficient calculations
- ✅ Accurate results
- 💡 Versatile ND filter notation options
- 🎨 Offers light and dark color schemes
Room to improve
- ⚠️ Ads can be intrusive and accidentally tappable
- 🤔 Some users confused by filter notation settings
- 🚫 Does not factor in aperture
- ⏳ Timer only starts from 30 seconds
- ❌ App freezes or crashes after use/updates
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
Long Exposure Calculator
Reported bugs
5 issues- App freezes after each use
- App crashes after update
- App freezes and needs to be closed and reopened
- App runs no more after iOS update
- App crashes and cannot be opened again
Requested features
11 requests- Filter bag feature to select owned filters
- Ability to edit existing filters for precise values
- Combine multiple filters in calculations
- Option to display calculated time in seconds only
- Acoustic signal/alarm at the end of the timer
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- Tutorial for new users
- Translation to Spanish
- Include aperture in calculations
- Background operation for timer
- 10-second warning before timer ends
- Loud buzzer at the end of the timer
In-app purchases
Massive Dev Chart Timer
No in-app purchases
Long Exposure Calculator
- Leave a Tip$1.99
- Leave a Tip$2.99
- Leave a Tip$3.99
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- Leave a Tip$5.99
- Leave a Tip$9.99
- Leave a tip$14.99
Questions
Is Massive Dev Chart Timer free?
Is Long Exposure Calculator free?
Which has better reviews, Massive Dev Chart Timer or Long Exposure Calculator?
Do Massive Dev Chart Timer or Long Exposure Calculator have ads?
Which is updated more often, Massive Dev Chart Timer or Long Exposure Calculator?
Other comparisons
