Massive Dev Chart Timer vs mySpotMeter
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
mySpotMeter
This app transforms your iPhone into a precise spot meter for photographers. It allows for detailed exposure control by measuring specific areas, evaluating contrast, and calculating settings for film or digital photography.
- Selectable 1°, 2°, and 4° spot metering angles
- Dedicated readings for shadows, highlights, and middle gray
- Aperture or shutter speed priority
- Store and compare measurements
- Instant aperture calculation
- Wide ISO, shutter speed, and aperture ranges
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Designed by a photographer, for photographers. Built with one clear goal: precise spot metering for photographers who want full control over exposure. mySpotMeter turns your iPhone into a dedicated spot meter with selectable 1°, 2° and 4° measuring angles. Whether you shoot film or digital, you can isolate specific areas, evaluate contrast and place your exposure with confidence. Key Features • Selectable 1°, 2° and 4° spot metering angles • Dedicated readings for shadows, highlights and middle gray • Aperture or shutter speed priority • Average readings mode • Store and compare measurements directly on the exposure scale • Clear EV difference between your target and the current reading • Instant aperture calculation based on the selected ISO and shutter speed • Shutter speed range from 240 seconds to 1/8000s • Aperture range from f/1.0 to f/128 • ISO range from 3 to 409.6K • Exposure settings in 1/3 or 1/2-stop increments • Measure using the on-screen control or the iPhone volume buttons • Automatic calibration and precise manual EV adjustment • Filter factor correction up to FF1000 Built for Deliberate Exposure Instead of averaging the entire scene, mySpotMeter lets you measure only the area that matters. Compare shadows and highlights, understand the available contrast and decide exactly where to place your exposure before pressing the shutter. Download the User Manual You can view or download the complete user manual before purchasing or downloading the app. Scroll to the Information section of this App Store page and tap Developer Website. About This app is built and maintained by an independent photographer and developer. It is a focused photographic tool, continuously refined through real-world use. If you have suggestions or need help, feel free to contact me: davidquiles@me.com
Screenshots
Verdict
The clearest difference is rating: mySpotMeter at 4.2 against Massive Dev Chart Timer's 3.7. mySpotMeter also leads on update cadence (every 2 days vs every 5 months) and review sentiment (100% vs 71%). Massive Dev Chart Timer's advantage is ratings volume (54 vs 6) and device support (3 vs 1). On ads, in-app purchases, monetization model and chart position 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
Massive Dev Chart Timer costs $9.99 and mySpotMeter $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
mySpotMeter holds the better App Store score, 4.2 against 3.7. That said, the two scores are not equally well evidenced: Massive Dev Chart Timer has 54 ratings behind it against 6, 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 100% of mySpotMeter's.
Massive Dev Chart Timer ships an update every 5 months, mySpotMeter every 2 days. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.
| Parameter | Massive Dev Chart Timer | mySpotMeter |
|---|---|---|
| Price | $9.99 | $6.99 — better |
| Rating | 3.7 (54 ratings) | 4.2 (6 ratings) — better |
| Positive reviews | 70.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 54 — better | 6 |
| Update frequency | Every 5 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #29 — better | #75 |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 26 |
| Further details — not scored | ||
| Size | 14 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Freestyle Photo & Imaging | David Quiles |
Customer experience
Massive Dev Chart Timer
mySpotMeter
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
mySpotMeter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Massive Dev Chart Timer
No in-app purchases
mySpotMeter
No in-app purchases
Questions
Is Massive Dev Chart Timer free?
Is mySpotMeter free?
Which has better reviews, Massive Dev Chart Timer or mySpotMeter?
Do Massive Dev Chart Timer or mySpotMeter have ads?
Which is updated more often, Massive Dev Chart Timer or mySpotMeter?
Which is more popular, Massive Dev Chart Timer or mySpotMeter?
Other comparisons
