# Theta vs HATO ONE

The clearest difference is review sentiment: Theta at 100% against HATO ONE's 0%. Theta also leads on rating (5.0 vs 2.0) and update cadence (monthly vs every 8 months). HATO ONE's advantage is ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Theta holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: HATO ONE has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Theta's written reviews are positive against 0% of HATO ONE's.

Theta ships an update monthly, HATO ONE every 8 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Theta | HATO ONE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/theta-meter-light/id1077931723/reviews)** | [2.0 (5 ratings)](https://appshunter.io/ios/app/hato-one/id1392122761/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Free | Free |
| Size | 13 MB | 31 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Mikhail Fedorov](https://appshunter.io/developer/714735606) | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) |

## What reviewers say

### Theta

[App page](https://appshunter.io/ios/app/theta-meter-light/id1077931723)

This application connects to specialized devices to measure and display galvanic skin response. It utilizes Wi-Fi and Bluetooth 4.0BLE to collect data on skin conductance, providing insights into physiological responses.

**Highlights:** Galvanic skin response measurement, Wi-Fi connectivity, Bluetooth 4.0BLE connection, Skin conductance data display, Physiological response tracking

**In-app purchases:** none


### 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 Theta free?

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

### Is HATO ONE free?

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

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

Theta is rated higher. Theta averages 5.0 out of 5 from 1 ratings, while HATO ONE averages 2.0 from 5 ratings.

### Do Theta or HATO ONE have ads?

Neither Theta nor HATO ONE shows ads.

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

Theta ships an update monthly, and HATO ONE every 8 months. Most recently, Theta was updated on November 2, 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.*