# Luxometer vs Light Teller

The clearest difference is rating: Light Teller at 5.0 against Luxometer's 4.0. Luxometer's advantage is in-app purchases (none vs 2) and update cadence (daily vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Light Teller sells 2 one-off in-app purchases. Luxometer asks for nothing beyond the download.

Light Teller holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Luxometer has 8 ratings behind it against 1, so its average is the more settled of the two.

Luxometer ships an update daily, Light Teller every 5 months. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Luxometer | Light Teller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (8 ratings)](https://appshunter.io/ios/app/luxometer/id1528110029/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/light-teller/id6450953060/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 0 MB | 1 MB |
| Requires iOS | **13.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arias Software LLC](https://appshunter.io/developer/1458265015) | [佳佳 陶](https://appshunter.io/developer/1682189695) |

## What reviewers say

### Luxometer

[App page](https://appshunter.io/ios/app/luxometer/id1528110029)

Measure ambient light intensity in Lumens and color temperature in Kelvin using your phone's built-in sensors. Point your device at a light source and see real-time readings, enhanced with augmented reality visualizations.

**Highlights:** Ambient light intensity measurement (Lumens), Ambient color temperature measurement (Kelvin), Real-time data readouts, Augmented reality visualizations, Uses device's built-in hardware

**Features:** macOS Compatibility

**In-app purchases:** none


### Light Teller

[App page](https://appshunter.io/ios/app/light-teller/id6450953060)

This app uses your smartphone camera to measure ambient light levels, helping parents ensure their children's study spaces have adequate lighting to protect their vision and reduce myopia risk. It offers clear instructions and educational content on light's impact on eye health.

**Highlights:** Brightness testing with smartphone camera, Light health guidance for parents, Detailed user instructions, Accurate and reliable measurements, Educational articles on visual health

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months Access | $1.99 | one-time |
| 1 Year Access | $4.99 | one-time |


## Frequently asked questions

### Is Luxometer free?

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

### Is Light Teller free?

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

### Which has better reviews, Luxometer or Light Teller?

Light Teller is rated higher. Luxometer averages 4.0 out of 5 from 8 ratings, while Light Teller averages 5.0 from 1 ratings.

### Do Luxometer or Light Teller have ads?

Neither Luxometer nor Light Teller shows ads.

### Which is updated more often, Luxometer or Light Teller?

Luxometer ships an update daily, and Light Teller every 5 months. Most recently, Luxometer was updated on September 8, 2026 and Light Teller on September 20, 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.*