# ETPhone vs Hiru

The clearest difference is rating: Hiru at 5.0 against ETPhone's 3.0. Hiru also leads on update cadence (every 5 weeks vs every 16 months). ETPhone's advantage is ratings volume (6 vs 1) and device support (3 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.

Hiru holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: ETPhone has 6 ratings behind it against 1, so its average is the more settled of the two.

ETPhone ships an update every 16 months, Hiru every 5 weeks. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ETPhone | Hiru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/etphone/id1529643726/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hiru/id1537070396/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 23 MB |
| Requires iOS | 16 | **15.7** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Argus Science, LLC](https://appshunter.io/developer/1529643728) | [IRISBOND CROWDBONDING SL](https://appshunter.io/developer/1519044422) |

## What reviewers say

### ETPhone

[App page](https://appshunter.io/ios/app/etphone/id1529643726)

This application enables real-time gaze computation and recording for eye tracking data collection using a compatible wearable device. It offers control over camera settings, participant calibration, and data recording to an SD card. Collected data can be easily transferred for detailed analysis on a PC.

**Highlights:** Real-time gaze computation, Gaze data recording, Camera gain and quality control, Participant calibration, SD card recording control, Data download for PC analysis

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Hiru

[App page](https://appshunter.io/ios/app/hiru/id1537070396)

This utility app calibrates eye-tracking hardware for an optimal experience. It guides users through setup, allows customization of pointer sensitivity and dwell time, and ensures accurate eye tracking for various uses. Regular updates are provided to enhance performance and accuracy.

**Highlights:** Eye tracking calibration, Positioning guide, Pointer sensitivity customization, Dwell time adjustment, Accuracy enhancement, Software updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ETPhone free?

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

### Is Hiru free?

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

### Which has better reviews, ETPhone or Hiru?

Hiru is rated higher. ETPhone averages 3.0 out of 5 from 6 ratings, while Hiru averages 5.0 from 1 ratings.

### Do ETPhone or Hiru have ads?

Neither ETPhone nor Hiru shows ads.

### Which is updated more often, ETPhone or Hiru?

ETPhone ships an update every 16 months, and Hiru every 5 weeks. Most recently, ETPhone was updated on October 10, 2026 and Hiru on October 8, 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.*