# illumeter vs Light Meter & Logbook

The clearest difference is rating: illumeter at 4.6 against Light Meter & Logbook's 4.0. illumeter also leads on in-app purchases (none vs 3) and ratings volume (11 vs 1). Light Meter & Logbook's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Light Meter & Logbook sells 3 in-app purchases, starting at $0.99 per month. illumeter asks for nothing beyond the download.

illumeter holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: illumeter has 11 ratings behind it against 1, so its average is the more settled of the two.

illumeter ships an update every 2 weeks, Light Meter & Logbook every 6 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | illumeter | Light Meter & Logbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/illumeter/id6474086258/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/light-meter-and-logbook/id6474434590/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 75 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Seunghun Yang](https://appshunter.io/developer/1586944242) | [Vadim Turko](https://appshunter.io/developer/1721526454) |

## What reviewers say

### illumeter

[App page](https://appshunter.io/ios/app/illumeter/id6474086258)

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:** macOS Compatibility

**In-app purchases:** none


### Light Meter & Logbook

[App page](https://appshunter.io/ios/app/light-meter-and-logbook/id6474434590)

Transform your smartphone into a professional light meter and comprehensive photo logbook. It offers precise exposure readings, advanced tools for various photography styles, and a flexible interface to organize all your shooting data.

**Highlights:** Reflected metering with camera, EV calibration and fractional stops, ISO range 3-25,600, ND filter and long-exposure timer, Spot metering with histogram, Film library and push/pull processing, Photo logbook for settings and notes

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lightmeter Pro | $0.99 | per month |
| Lightmeter Pro | $14.99 | per year |
| Lightmeter Pro | $9.99 | one-time |


## Frequently asked questions

### Is illumeter free?

illumeter is free to download, with no in-app purchases.

### Is Light Meter & Logbook free?

Light Meter & Logbook is free to download, with in-app purchases available.

### Which has better reviews, illumeter or Light Meter & Logbook?

illumeter is rated higher. illumeter averages 4.6 out of 5 from 11 ratings, while Light Meter & Logbook averages 4.0 from 1 ratings.

### Do illumeter or Light Meter & Logbook have ads?

Neither illumeter nor Light Meter & Logbook shows ads.

### Which is updated more often, illumeter or Light Meter & Logbook?

illumeter ships an update every 2 weeks, and Light Meter & Logbook every 6 weeks. Most recently, illumeter was updated on October 7, 2026 and Light Meter & Logbook on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*