# LightSpectrum Pro vs HATO ONE

The clearest difference is price: HATO ONE at Free against LightSpectrum Pro's $1.99. HATO ONE also leads on iOS requirement (11.0 vs 15.6). LightSpectrum Pro's advantage is rating (4.1 vs 2.0) and review sentiment (28% vs 0%). On ads, in-app purchases, monetization model and device support there is nothing between them.

HATO ONE is free to download; LightSpectrum Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LightSpectrum Pro holds the better App Store score, 4.1 against 2.0. That said, the two scores are not equally well evidenced: LightSpectrum Pro has 39 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 28% of LightSpectrum Pro's written reviews are positive against 0% of HATO ONE's.

LightSpectrum Pro ships an update every 3 months, HATO ONE every 8 months. The most recent releases landed on October 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | LightSpectrum Pro | HATO ONE |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.1 (39 ratings)](https://appshunter.io/ios/app/lightspectrum-pro/id468368751/reviews)** | [2.0 (5 ratings)](https://appshunter.io/ios/app/hato-one/id1392122761/reviews) |
| Number of ratings | **39** | 5 |
| Positive reviews | **28.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free | Free |
| Best chart rank | **#15** | — |
| Size | 88 MB | 31 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AM PowerSoftware](https://appshunter.io/developer/303958914) | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) |

## What reviewers say

### LightSpectrum Pro

[App page](https://appshunter.io/ios/app/lightspectrum-pro/id468368751)

**Currently charting:** #15 Top Paid · Utilities, #112 Top Paid (US App Store)

Measure light source color temperature and spectrum accurately without expensive equipment. View the color spectrum from 360nm to 800nm, and analyze the white point on the CIE 1931 diagram. Overlay filtered wavelengths on camera images to see frequency reflections and intensity.

**Highlights:** Color temperature measurement, Color spectrum analysis (360nm-800nm), CIE 1931 white point display, Wavelength filtering and overlay, High accuracy compared to professional devices

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 📸 Accurate white balance measurement for photography
- 💡 Innovative spectrum analysis without expensive equipment
- 💰 Affordable alternative to $1,600+ professional color meters
- 📊 Detailed spectral graph visualization
- 🎯 Useful for photographers, videographers, and lighting professionals

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- 📱 Incompatible with many iPhone models (iPhone 5, 5S, 6, 6+, 11, X)
- ❌ Camera access problems on multiple devices
- 🎨 Inaccurate readings for certain light types (LEDs, low color temps)
- 🖥️ Poor UI scaling on larger screens (iPhone 6+, iPad)

**Reported bugs**

- App crashes on startup or during use
- Camera feed not accessible or showing red X icon
- Screen blinking/flashing on first launch
- UI elements cut off on larger screens
- Buttons unresponsive or sticky

**Requested features**

- Spot metering with crosshairs or target reticle
- Direct DUV (Delta uv) display calculation
- Flicker detection for light sources
- Calibration function for improved accuracy
- Support for fluorescent light preset adjustments


### 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 LightSpectrum Pro free?

LightSpectrum Pro costs $1.99, with no in-app purchases.

### Is HATO ONE free?

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

### Which has better reviews, LightSpectrum Pro or HATO ONE?

LightSpectrum Pro is rated higher. LightSpectrum Pro averages 4.1 out of 5 from 39 ratings, while HATO ONE averages 2.0 from 5 ratings.

### Do LightSpectrum Pro or HATO ONE have ads?

Neither LightSpectrum Pro nor HATO ONE shows ads.

### Which is updated more often, LightSpectrum Pro or HATO ONE?

LightSpectrum Pro ships an update every 3 months, and HATO ONE every 8 months. Most recently, LightSpectrum Pro was updated on October 14, 2026 and HATO ONE on September 26, 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.*