# Lumu Light Meter vs Lghtmtr

The clearest difference is rating: Lghtmtr at 4.6 against Lumu Light Meter's 3.4. Lghtmtr also leads on review sentiment (80% vs 53%) and monetization model (free vs free with in-app purchases). Lumu Light Meter's advantage is update cadence (monthly vs every 3 months) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Lumu Light Meter sells 3 one-off in-app purchases and Lghtmtr sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Lghtmtr holds the better App Store score, 4.6 against 3.4. Both are backed by a comparable volume of ratings — 103 and 158 respectively. Written reviews point the same way: 53% of Lumu Light Meter's written reviews are positive against 80% of Lghtmtr's.

Lumu Light Meter ships an update monthly, Lghtmtr every 3 months. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Lumu Light Meter | Lghtmtr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (103 ratings)](https://appshunter.io/ios/app/lumu-light-meter/id730969737/reviews) | **[4.6 (158 ratings)](https://appshunter.io/ios/app/lghtmtr/id956251190/reviews)** |
| Number of ratings | 103 | **158** |
| Positive reviews | 52.8% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 52 MB | 49 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lumu d.o.o.](https://appshunter.io/developer/912288615) | [Alexander Jacque](https://appshunter.io/developer/1164318048) |

## What reviewers say

### Lumu Light Meter

[App page](https://appshunter.io/ios/app/lumu-light-meter/id730969737)

This app functions as a standalone reflective light meter or pairs with hardware for professional flash and color temperature measurements. It offers various modes for photography and videography, storing measurements with notes and location.

**Highlights:** Standalone reflective light meter, Flash and color temperature metering, Photo and cine/video modes, Spot metering, Color temperature in Kelvin, Store measurements with notes

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite to Power Upgrade | $69.99 | one-time |
| Power to Pro Upgrade | $229.99 | one-time |
| Lite to Pro Upgrade | $249.99 | one-time |

**What reviewers like**

- ✨ Accurate light metering
- ✨ Precise color meter readings
- 👍 Intuitive and clean UI
- 👍 Great for film photography
- 👍 Convenient pocket-sized tool

**What reviewers complain about**

- 😞 Terrible customer service
- 😞 Unresponsive support
- 😞 Expensive hardware
- 😞 Misleading advertising
- 😞 Inconsistent accuracy

**Reported bugs**

- 🐛 LUX value shown as FootCandle
- 🐛 ISO keeps changing when metering
- 🐛 Color temp readout option disappeared
- 🐛 Error when factory resetting module
- 🐛 Cannot read CCT

**Requested features**

- 💡 Aperture priority mode
- 💡 Ability to lock aperture
- 💡 Analog style shutter speed/aperture display
- 💡 Option to see all equivalent exposure settings at a glance
- 💡 Ability to take two readings and see difference in stops


### Lghtmtr

[App page](https://appshunter.io/ios/app/lghtmtr/id956251190)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee tip | $4.99 | one-time |


## Frequently asked questions

### Is Lumu Light Meter free?

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

### Is Lghtmtr free?

Lghtmtr is free to download, with in-app purchases available.

### Which has better reviews, Lumu Light Meter or Lghtmtr?

Lghtmtr is rated higher. Lumu Light Meter averages 3.4 out of 5 from 103 ratings, while Lghtmtr averages 4.6 from 158 ratings.

### Do Lumu Light Meter or Lghtmtr have ads?

Neither Lumu Light Meter nor Lghtmtr shows ads.

### Which is updated more often, Lumu Light Meter or Lghtmtr?

Lumu Light Meter ships an update monthly, and Lghtmtr every 3 months. Most recently, Lumu Light Meter was updated on October 20, 2026 and Lghtmtr on October 29, 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.*