# Luminis Light Meter vs LightMeter Express

The clearest difference is in-app purchases: Luminis Light Meter at none against LightMeter Express's 1. Luminis Light Meter also leads on iOS requirement (15.0 vs 17.6). LightMeter Express's advantage is ads (none vs shown) and update cadence (daily vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. LightMeter Express sells 1 one-off in-app purchase. Luminis Light Meter asks for nothing beyond the download.

Luminis Light Meter ships an update every 2 weeks, LightMeter Express daily. The most recent releases landed on September 14, 2026 and July 4, 2026 respectively.

## The numbers

| Metric | Luminis Light Meter | LightMeter Express |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/lightmeter-express/id6748661409/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 4 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Dejan Boras](https://appshunter.io/developer/1612985659) | [Digitaino LLC](https://appshunter.io/developer/1822882839) |

## What reviewers say

### Luminis Light Meter

[App page](https://appshunter.io/ios/app/luminis-light-meter/id6670429300)

**Features:** macOS Compatibility

**In-app purchases:** none


### LightMeter Express

[App page](https://appshunter.io/ios/app/lightmeter-express/id6748661409)

This tool transforms your iPhone into a professional light meter for photography. It offers accurate exposure readings with real-time calculations for aperture, shutter speed, and ISO, supporting various camera settings and providing exposure compensation.

**Highlights:** Real-time light metering, Precise exposure calculations, Support for standard camera settings, Exposure value (EV) display, Spot metering (Pro feature), Live histogram (Pro feature)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Meter Pro | $2.99 | one-time |


## Frequently asked questions

### Is Luminis Light Meter free?

Luminis Light Meter is free to download, with no in-app purchases.

### Is LightMeter Express free?

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

### Do Luminis Light Meter or LightMeter Express have ads?

Luminis Light Meter shows ads; LightMeter Express does not.

### Which is updated more often, Luminis Light Meter or LightMeter Express?

Luminis Light Meter ships an update every 2 weeks, and LightMeter Express daily. Most recently, Luminis Light Meter was updated on September 14, 2026 and LightMeter Express on July 4, 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.*