Massive Dev Chart Timer vs Light Meter Wheel
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
Light Meter Wheel
This app offers a fast, visual, and precise way to measure light for photography. It features a unique exposure wheel that displays aperture, shutter speed, and ISO simultaneously, giving photographers instant control and clarity.
- Real exposure wheel with all values in one view
- Real-time metering with instant EV readings
- Wide ISO and shutter speed range
- Exposure timer for long exposures
- Incident metering using front camera
- Calibration for accuracy
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Light Meter Wheel brings a unique way to measure light — fast, visual and precise. Instead of switching modes, everything is visible at once. Aperture, shutter speed and ISO are seamlessly connected through a real exposure wheel, giving you full control at a glance. Designed for photographers who value clarity, speed and accuracy. Also especially useful for pinhole photography, where its wide aperture range and long exposure timer make setting exposures straightforward. Features • Real exposure wheel with all values in one view • Real-time metering with instant EV readings • Wide ISO range: 0.8 – 6400 • Shutter speeds from 1/8000s to 4 hours • Apertures from f/0.7 to f/1024 • Exposure timer (perfect for long exposures & pinhole) • HOLD function to lock readings • Incident metering using the front camera • Custom backgrounds and light/dark modes • Calibration for maximum accuracy Built by a photographer, for photographers.
Screenshots
Verdict
The clearest difference is rating: Light Meter Wheel at 4.7 against Massive Dev Chart Timer's 3.7. Light Meter Wheel also leads on price ($1.99 vs $9.99) and review sentiment (91% vs 71%). Massive Dev Chart Timer's advantage is chart position (#29 vs unranked) and ratings volume (54 vs 12). On ads, in-app purchases 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
Massive Dev Chart Timer costs $9.99 and Light Meter Wheel $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Light Meter Wheel holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 54 and 12 respectively. Written reviews point the same way: 71% of Massive Dev Chart Timer's written reviews are positive against 91% of Light Meter Wheel's.
Massive Dev Chart Timer ships an update every 5 months, Light Meter Wheel every 2 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.
| Parameter | Massive Dev Chart Timer | Light Meter Wheel |
|---|---|---|
| Price | $9.99 | $1.99 — better |
| Rating | 3.7 (54 ratings) | 4.7 (12 ratings) — better |
| Positive reviews | 70.8% of reviews | 91.3% of reviews — better |
| Number of ratings | 54 — better | 12 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #29 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 14 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Freestyle Photo & Imaging | David Quiles |
Customer experience
Massive Dev Chart Timer
Light Meter Wheel
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
Light Meter Wheel
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Massive Dev Chart Timer
No in-app purchases
Light Meter Wheel
No in-app purchases
Questions
Is Massive Dev Chart Timer free?
Is Light Meter Wheel free?
Which has better reviews, Massive Dev Chart Timer or Light Meter Wheel?
Do Massive Dev Chart Timer or Light Meter Wheel have ads?
Which is updated more often, Massive Dev Chart Timer or Light Meter Wheel?
Other comparisons
