# Luminometer vs Lux Meter Pros

The clearest difference is review sentiment: Lux Meter Pros at 50% against Luminometer's 0%. Lux Meter Pros also leads on rating (5.0 vs 3.5) and ads (none vs shown). Luminometer's advantage is ratings volume (16 vs 1) and update cadence (every 2 months vs every 4 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Luminometer sells 2 in-app purchases, starting at $2.99 per 7 days and Lux Meter Pros sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lux Meter Pros holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Luminometer has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Luminometer's written reviews are positive against 50% of Lux Meter Pros's.

Luminometer ships an update every 2 months, Lux Meter Pros every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Luminometer | Lux Meter Pros |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (16 ratings)](https://appshunter.io/ios/app/luminometer-lux-light-meter/id6446325225/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lux-meter-pros/id6740999944/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 25 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [27GROUP](https://appshunter.io/developer/1589401961) | [DADLINK TECHNOLOGIES LIMITED](https://appshunter.io/developer/1736032380) |

## What reviewers say

### Luminometer

[App page](https://appshunter.io/ios/app/luminometer-lux-light-meter/id6446325225)

Transform your device into a professional light meter to measure luminosity in lux and foot-candles. Achieve optimal illumination for any space, from greenhouses to workspaces, ensuring comfort and preventing glare. Calibrated with reference equipment for precise and reliable readings.

**Highlights:** Measures lux and foot-candle units, Internal Exposure Compensation for accuracy, Camera view for measured area, Calibrated with reference equipment, Versatile for various lighting conditions, Helps set optimal illumination levels

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Lifetime | $9.99 | one-time |


### Lux Meter Pros

[App page](https://appshunter.io/ios/app/lux-meter-pros/id6740999944)

This tool transforms your iPhone into a professional light testing device. It measures lux levels, conducts emergency lighting discharge tests, and generates compliance certificates for UK electricians and facility managers.

**Highlights:** Real-time lux measurement, Photo-based light readings, Room grid mapping, Emergency light testing (BS 5266), Certificate generation (PDF), Exportable reports (PDF/CSV), Historical tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Lux Pass | $0.99 | per 7 days |
| Monthly Lux Pass | $2.99 | per month |
| Annual Lux Pass | $24.99 | per year |


## Frequently asked questions

### Is Luminometer free?

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

### Is Lux Meter Pros free?

Lux Meter Pros is free to download, with in-app purchases available.

### Which has better reviews, Luminometer or Lux Meter Pros?

Lux Meter Pros is rated higher. Luminometer averages 3.5 out of 5 from 16 ratings, while Lux Meter Pros averages 5.0 from 1 ratings.

### Do Luminometer or Lux Meter Pros have ads?

Luminometer shows ads; Lux Meter Pros does not.

### Which is updated more often, Luminometer or Lux Meter Pros?

Luminometer ships an update every 2 months, and Lux Meter Pros every 4 months. Most recently, Luminometer was updated on October 24, 2026 and Lux Meter Pros on October 24, 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.*