Comparison

Massive Dev Chart Timer vs light & deep

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

light & deep

Features
Read full description

Light & Deep is a viewfinder, light meter and LiDAR rangefinder for film, cinema and custom made cameras. Choose your format and focal length, meter the light and measure your subject distance. With Pro (one purchase, no subscription), see the estimated depth of field as zebra stripes over the live scene, and watch it change as you adjust the aperture. Originally built for a handmade camera without a finder or meter, it brings the same practical tools to medium-format, large-format and panoramic photography. SEE DEPTH OF FIELD — PRO Explore which nearby parts of your scene would be sharp for your format, focal length, aperture and focus distance. Open the aperture and the highlighted zone narrows. Stop down and it grows. METER THE LIGHT Set your film ISO, choose aperture or shutter priority, and read the corresponding exposure setting. Pro adds spot metering and calibration for each iPhone lens. FRAME YOUR SHOT Set your format and focal length to preview composition. Free offers 35mm full frame and 6x6 medium format. Pro offers 53 film, digital and cinema formats, including large format, XPan, Instax, Polaroid, Super 8, and IMAX. MEASURE THE DISTANCE On a LiDAR-equipped iPhone, tap a point to measure its distance. The free distance zebra highlights surfaces near the selected distance. Pro adds depth-of-field visualization and can keep measuring a fixed point in the scene even as you move the phone. SAVE A REFERENCE — PRO Keep a reference photo with a settings strip and image metadata. Record aperture, shutter speed, ISO, format, focal length, distance, a film note and optional location, so you can refer back to your setup later. FREE, WITH NO TIME LIMIT • Reflective light meter with aperture and shutter priority • 35mm full-frame and 6×6 frame overlays • Focal-length control • LiDAR distance measurement, tap-to-measure and target-distance zebras on supported hardware PRO - ONE PURCHASE, NO SUBSCRIPTION • Depth-of-field visualization on supported hardware • All 53 formats • Spot metering and light-meter calibration • Reference photos with settings and metadata • Fixed-point distance tracking • Ultrawide camera support on compatible devices • Black-and-white view and virtual horizon • Frame, zebra and crosshair customization • Parallax correction for a phone mounted on a camera • Cinema tools: shutter angle, project frame rate and anamorphic squeeze Pro is an optional one-time in-app purchase. The free features remain available without upgrading. REQUIREMENTS iPhone with iOS 17.6 or later. Distance measurement, distance zebras and depth-of-field visualization require a LiDAR-equipped iPhone: iPhone 12 Pro or 12 Pro Max, or a later model with LiDAR. Metering and framing work without LiDAR. LiDAR is intended for nearby subjects, with a useful range of about five metres depending on conditions. Depth coverage is limited to the central area in ultrawide view. The depth-of-field overlay estimates acceptable sharpness; it does not simulate lens bokeh or guarantee the final photograph's sharpness. PRIVACY No account, ads or analytics. Camera, depth and exposure processing happens on your device. Optional location data is used when you choose to include it in a reference photo.

Screenshots

Massive Dev Chart Timer4 screens
light & deep4 screens

Verdict

The call

The clearest difference is price: light & deep at Free against Massive Dev Chart Timer's $9.99. light & deep also leads on update cadence (every 2 weeks vs every 5 months). Massive Dev Chart Timer's advantage is in-app purchases (none vs 1) and chart position (#46 vs unranked). On 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

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

UpkeepUpdate frequency

Massive Dev Chart Timer ships an update every 5 months, light & deep every 2 weeks. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 5 level
Massive Dev Chart Timer versus light & deep: the parameters behind the verdict, then further details
ParameterMassive Dev Chart Timerlight & deep
Price$9.99Free — better
Rating3.7 (55 ratings) — better—
Positive reviews70.8% of reviews—
Number of ratings55 — better—
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#46 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size14 MB4 MB
Age rating4+4+
DeveloperFreestyle Photo & ImagingMikhail Rybakov

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

light & deep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Massive Dev Chart Timer

No in-app purchases

1 purchases

light & deep

One-time1
  • Light & Deep Pro$11.99

Questions

Is Massive Dev Chart Timer free?
Massive Dev Chart Timer costs $9.99, with no in-app purchases.
Is light & deep free?
light & deep is free to download, with in-app purchases available.
Do Massive Dev Chart Timer or light & deep have ads?
Neither Massive Dev Chart Timer nor light & deep shows ads.
Which is updated more often, Massive Dev Chart Timer or light & deep?
Massive Dev Chart Timer ships an update every 5 months, and light & deep every 2 weeks. Most recently, Massive Dev Chart Timer was updated on November 1, 2026 and light & deep on October 28, 2026.

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