# Lumu Light Meter vs LightScope

The clearest difference is price: Lumu Light Meter at Free against LightScope's $9.99. Lumu Light Meter also leads on review sentiment (53% vs 42%) and iOS requirement (12.0 vs 16.6). LightScope's advantage is in-app purchases (none vs 3) and update cadence (every 2 weeks vs monthly). On ads and device support there is nothing between them.

Lumu Light Meter is free to download; LightScope costs $9.99 up front. Lumu Light Meter sells 3 one-off in-app purchases. LightScope asks for nothing beyond the download.

Lumu Light Meter ships an update monthly, LightScope every 2 weeks. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Lumu Light Meter | LightScope |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[3.4 (103 ratings)](https://appshunter.io/ios/app/lumu-light-meter/id730969737/reviews)** | — |
| Number of ratings | **103** | — |
| Positive reviews | **52.8% of reviews** | 41.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 52 MB | 2 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lumu d.o.o.](https://appshunter.io/developer/912288615) | [Byungil Park](https://appshunter.io/developer/318781673) |

## 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


### LightScope

[App page](https://appshunter.io/ios/app/lightscope-light-and-ev-meter/id1572227924)

This app uses your device's camera to measure and analyze various light properties, including illuminance, luminous intensity, and color temperature. It offers real-time histograms, contrast ratio, and noise measurements, with options for image capture and history tracking.

**Highlights:** Illuminance (lux) measurement, Luminous intensity (candela) calculation, Color temperature (K) analysis, Real-time histogram, Contrast ratio measurement, Image capture and storage, Measurement history and trends

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lumu Light Meter free?

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

### Is LightScope free?

LightScope costs $9.99, with no in-app purchases.

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

Neither Lumu Light Meter nor LightScope shows ads.

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

Lumu Light Meter ships an update monthly, and LightScope every 2 weeks. Most recently, Lumu Light Meter was updated on October 20, 2026 and LightScope on October 13, 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.*