Comparison

illumeter vs FilmDevMate

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

Head to head
About

illumeter

This app functions as a portable light meter, allowing users to measure exposure values like aperture, shutter speed, and ISO. It offers features for logging shots with location and settings, and provides customization options for a personalized user experience.

Highlights
  • Exposure measurement (Aperture, Shutter Speed, ISO)
  • Tap-to-focus exposure lock
  • Exposure compensation
  • Frame logging with location and settings
  • List and map view of logged frames
  • Customizable settings and appearance
Features
Read full description

illumeter, The Simplest Light Meter in Your Pocket. Exposure Meter • Choose the value you want to measure from Aperture, Shutter Speed, or ISO. • The selected value automatically adjusts based on changes in the other two settings. • Tap a specific point on the screen to lock the exposure to that area. • An exposure compensation feature is provided to help you handle various challenging lighting conditions. Frame Logging • Log your frames by composing your shot and pressing the shutter button. • Location, date and time, EV value, and settings are recorded with each frame. • Review your recorded frames in a list and on a map. • Easily delete or edit incorrect frames. Settings & Personalization • Easily toggle various features on or off. • Deactivate or remove unused values. • Customize the app's appearance and feedback to your preference.

About

FilmDevMate

Features
Read full description

Film developing, start to finish From finding a recipe to running the timer to logging your results. FilmDevMate brings the entire developing process into one app. ■ Find and share developing recipes Browse recipes organized by film and developer combination. Follow recipes shared by other users, or publish the ones you've dialed in yourself. Need to push or pull? Just pick the stops — the adjusted developing time is calculated instantly. ■ A hands-free timer The timer runs each step straight from the recipe, and you can edit steps to match your own workflow. It keeps perfect time in the background and notifies you when each step ends — no more clutching a stopwatch. ■ Conquer the developing world Every roll you develop claims new territory. Fill in your own developing map and battle users around the world for turf. ■ Let the app do the math Calculate dilution ratios with the mixer and convert units in a couple of taps. No measuring mistakes — just focus on developing. ■ Your logs become your skill Review past sessions in History and rerun the timer with the same settings in one tap. The dashboard shows your developing stats by format and film stock at a glance. Develop another roll today, with FilmDevMate.

Screenshots

illumeter4 screens
FilmDevMate4 screens

Verdict

The call

The clearest difference is ads: illumeter at none against FilmDevMate's shown. FilmDevMate's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

illumeter ships an update every 2 weeks, FilmDevMate every 2 days. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
illumeter versus FilmDevMate: the parameters behind the verdict, then further details
ParameterillumeterFilmDevMate
PriceFreeFree
Rating4.6 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size12 MB18 MB
Age rating4+4+
DeveloperSeunghun YangYeji Hong

In-app purchases

None

illumeter

No in-app purchases

None

FilmDevMate

No in-app purchases

Questions

Is illumeter free?
illumeter is free to download, with no in-app purchases.
Is FilmDevMate free?
FilmDevMate is free to download, with no in-app purchases.
Do illumeter or FilmDevMate have ads?
FilmDevMate shows ads; illumeter does not.
Which is updated more often, illumeter or FilmDevMate?
illumeter ships an update every 2 weeks, and FilmDevMate every 2 days. Most recently, illumeter was updated on October 7, 2026 and FilmDevMate on October 10, 2026.

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