# HATO ONE vs Luminometer

The clearest difference is rating: Luminometer at 3.5 against HATO ONE's 2.0. Luminometer also leads on update cadence (every 2 months vs every 8 months) and ratings volume (16 vs 5). HATO ONE's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, review sentiment 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. HATO ONE asks for nothing beyond the download.

Luminometer holds the better App Store score, 3.5 against 2.0. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

HATO ONE ships an update every 8 months, Luminometer every 2 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HATO ONE | Luminometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (5 ratings)](https://appshunter.io/ios/app/hato-one/id1392122761/reviews) | **[3.5 (16 ratings)](https://appshunter.io/ios/app/luminometer-lux-light-meter/id6446325225/reviews)** |
| Number of ratings | 5 | **16** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 31 MB | 14 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) | [27GROUP](https://appshunter.io/developer/1589401961) |

## What reviewers say

### 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


### 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 |


## Frequently asked questions

### Is HATO ONE free?

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

### Is Luminometer free?

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

### Which has better reviews, HATO ONE or Luminometer?

Luminometer is rated higher. HATO ONE averages 2.0 out of 5 from 5 ratings, while Luminometer averages 3.5 from 16 ratings.

### Do HATO ONE or Luminometer have ads?

Luminometer shows ads; HATO ONE does not.

### Which is updated more often, HATO ONE or Luminometer?

HATO ONE ships an update every 8 months, and Luminometer every 2 months. Most recently, HATO ONE was updated on October 21, 2026 and Luminometer 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.*