# HATO ONE vs OSpectrometer

The clearest difference is in-app purchases: HATO ONE at none against OSpectrometer's 2. HATO ONE also leads on iOS requirement (11.0 vs 15.1). OSpectrometer's advantage is update cadence (every 2 weeks vs every 8 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. HATO ONE asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 2.0 for HATO ONE against 2.0 for OSpectrometer. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

HATO ONE ships an update every 8 months, OSpectrometer every 2 weeks. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | HATO ONE | OSpectrometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (5 ratings)](https://appshunter.io/ios/app/hato-one/id1392122761/reviews) | [2.0 (4 ratings)](https://appshunter.io/ios/app/ospectrometer/id6446124449/reviews) |
| Number of ratings | **5** | 4 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 31 MB | 71 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) |

## 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


### OSpectrometer

[App page](https://appshunter.io/ios/app/ospectrometer/id6446124449)

This app uses your device's camera and screen to perform basic optical spectroscopy. Analyze the visible light spectrum of objects, map light wavelengths to RGB values, and save or share your findings. It functions offline without external hardware.

**Highlights:** Visible light spectrum analysis, RGB color value mapping, Wavelength selection and scanning, Front camera reflection sensing, Save and share results, Offline functionality

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| month | $2.99 | per month |
| year | $9.99 | per year |


## Frequently asked questions

### Is HATO ONE free?

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

### Is OSpectrometer free?

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

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

HATO ONE and OSpectrometer are both rated 2.0 out of 5 on the App Store, from 5 and 4 ratings respectively.

### Do HATO ONE or OSpectrometer have ads?

Neither HATO ONE nor OSpectrometer shows ads.

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

HATO ONE ships an update every 8 months, and OSpectrometer every 2 weeks. Most recently, HATO ONE was updated on September 26, 2026 and OSpectrometer on September 29, 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.*