Comparison

Massive Dev Chart Timer vs Lghtmtr

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Offline film development chart
  • Multi-step timer with sound notifications
  • Customizable agitation schemes
  • Darkroom themes
  • Dilution mixer
  • Automated time/temperature compensation
Features
Read full description

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

About

Lghtmtr

This app provides a minimalist light meter to help users determine ideal exposure settings for photography. It visually demonstrates the relationship between ISO, aperture, and shutter speed, making it intuitive for learning photographers.

Highlights
  • Minimalist light meter
  • Intuitive exposure settings
  • Visual feedback
  • Adjustable ISO, aperture, shutter speed
  • Camera profile customization
  • Scene reference with readings
Features
Read full description

Lghtmtr is a beautifully simple light meter that helps you find — and understand — the ideal exposure settings for a scene. Built for film photographers and anyone learning the craft, it makes the relationship between ISO, aperture, and shutter speed feel intuitive and the visual feedback helps reinforce the connection between them. Take a reading, get your settings, and start exploring. Adjust one value and the others respond instantly. Lock settings to experiment and see how each change affects your exposure. You can easily add camera profiles to the app to limit the possible values to what's most relevant to your camera and lens combination. With a visual reference of the scene behind every reading, Lghtmtr helps you shoot with clarity and confidence.

Screenshots

Massive Dev Chart Timer4 screens
Lghtmtr4 screens

Verdict

The call

The clearest difference is price: Lghtmtr at Free against Massive Dev Chart Timer's $9.99. Lghtmtr also leads on rating (4.5 vs 3.7) and review sentiment (80% vs 71%). Massive Dev Chart Timer's advantage is in-app purchases (none vs 1) and chart position (#36 vs unranked). On ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Lghtmtr is free to download; Massive Dev Chart Timer costs $9.99 up front. Lghtmtr sells 1 one-off in-app purchase. Massive Dev Chart Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Lghtmtr holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 54 and 129 respectively. Written reviews point the same way: 71% of Massive Dev Chart Timer's written reviews are positive against 80% of Lghtmtr's.

UpkeepUpdate frequency

Massive Dev Chart Timer ships an update every 5 months, Lghtmtr every 4 months. Both last shipped on October 14, 2026.

Scorecard8 real differences · 3 level
Massive Dev Chart Timer versus Lghtmtr: the parameters behind the verdict, then further details
ParameterMassive Dev Chart TimerLghtmtr
Price$9.99Free — better
Rating3.7 (54 ratings)4.5 (129 ratings) — better
Positive reviews70.8% of reviews79.7% of reviews — better
Number of ratings54129 — better
Update frequencyEvery 5 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
Best chart rank#36 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.5
Further details — not scored
Size14 MB25 MB
Age rating4+4+
DeveloperFreestyle Photo & ImagingAlexander Jacque

Customer experience

Massive Dev Chart Timer

All ratings54 ratings
Positive63.0%
Neutral7.4%
Negative29.6%
Written reviews216 reviews
Positive70.8%
Neutral8.3%
Negative20.8%

Lghtmtr

All ratings129 ratings
Positive87.6%
Neutral4.7%
Negative7.8%
Written reviews74 reviews
Positive79.7%
Neutral6.8%
Negative13.5%

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
Show 7 more
  • 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
Show 10 more
  • 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

Lghtmtr

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Massive Dev Chart Timer

No in-app purchases

1 purchases

Lghtmtr

One-time1
  • Coffee tip$4.99

Questions

Is Massive Dev Chart Timer free?
Massive Dev Chart Timer costs $9.99, with no in-app purchases.
Is Lghtmtr free?
Lghtmtr is free to download, with in-app purchases available.
Which has better reviews, Massive Dev Chart Timer or Lghtmtr?
Lghtmtr is rated higher. Massive Dev Chart Timer averages 3.7 out of 5 from 54 ratings, while Lghtmtr averages 4.5 from 129 ratings.
Do Massive Dev Chart Timer or Lghtmtr have ads?
Neither Massive Dev Chart Timer nor Lghtmtr shows ads.
Which is updated more often, Massive Dev Chart Timer or Lghtmtr?
Massive Dev Chart Timer ships an update every 5 months, and Lghtmtr every 4 months. Most recently, Massive Dev Chart Timer was updated on October 14, 2026 and Lghtmtr on October 14, 2026.

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