# Lux Light Meter Pro vs HATO ONE

The clearest difference is rating: Lux Light Meter Pro at 3.9 against HATO ONE's 2.0. Lux Light Meter Pro also leads on ratings volume (5.2K vs 5) and review sentiment (21% vs 0%). HATO ONE's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Lux Light Meter Pro sells 3 in-app purchases, starting at $1.99 per month. HATO ONE asks for nothing beyond the download.

Lux Light Meter Pro holds the better App Store score, 3.9 against 2.0. That said, the two scores are not equally well evidenced: Lux Light Meter Pro has 5.2K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 21% of Lux Light Meter Pro's written reviews are positive against 0% of HATO ONE's.

Lux Light Meter Pro ships an update every 3 months, HATO ONE every 8 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Lux Light Meter Pro | HATO ONE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (5.2K ratings)](https://appshunter.io/ios/app/lux-light-meter-pro/id1292598866/reviews)** | [2.0 (5 ratings)](https://appshunter.io/ios/app/hato-one/id1392122761/reviews) |
| Number of ratings | **5.2K** | 5 |
| Positive reviews | **21.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 31 MB |
| Requires iOS | 15 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marina Polyanskaya](https://appshunter.io/developer/1519482916) | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) |

## What reviewers say

### Lux Light Meter Pro

[App page](https://appshunter.io/ios/app/lux-light-meter-pro/id1292598866)

Measure light intensity in lux and foot candles with this 2-in-1 meter. Optimize photography settings, adjust indoor lighting, or prevent eye strain with professional-quality readings directly from your smartphone.

**Highlights:** Real-time lux and foot candle measurements, Real-time color temperature measurements, Real-time histogram plotting, Customizable settings for shutter speed, ISO, aperture, Front and back camera support, Intuitive and customizable controls

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $1.99 | per month |
| Premium Access | $14.99 | per year |
| Pro Mode | $9.99 | one-time |

**What reviewers like**

- 🚀 Simple and straightforward
- 👍 Useful for measuring light levels
- 🔍 Provides general lux measurements

**What reviewers complain about**

- 🐛 Inaccurate and inconsistent readings
- 🔍 Limited functionality compared to professional light meters
- 💰 Requires subscription for full features
- 🤖 Glitchy and non-responsive at times

**Reported bugs**

- Readings stuck at 0 lux regardless of light conditions
- Frequent crashes and freezes
- Inability to switch between front and rear cameras

**Requested features**

- Ability to save and review past measurements
- More detailed instructions and guidance on proper usage
- Improved accuracy and calibration options


### HATO ONE

[App page](https://appshunter.io/ios/app/hato-one/id1392122761)

This utility app measures key light aspects crucial for poultry welfare and performance. It allows comparison with industry standards and export of data for analysis. Remote measurement capabilities enhance user convenience.

**Highlights:** Measures light intensity, Measures critical color temperature, Measures light spectrum, Measures color rendering index, Measures light flicker, Compares measurements to standards, Exports data to PC, Remote measurement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lux Light Meter Pro free?

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

### Is HATO ONE free?

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

### Which has better reviews, Lux Light Meter Pro or HATO ONE?

Lux Light Meter Pro is rated higher. Lux Light Meter Pro averages 3.9 out of 5 from 5.2K ratings, while HATO ONE averages 2.0 from 5 ratings.

### Do Lux Light Meter Pro or HATO ONE have ads?

Lux Light Meter Pro shows ads; HATO ONE does not.

### Which is updated more often, Lux Light Meter Pro or HATO ONE?

Lux Light Meter Pro ships an update every 3 months, and HATO ONE every 8 months. Most recently, Lux Light Meter Pro was updated on November 3, 2026 and HATO ONE on November 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.*