# PsyPad vs ETPhone

The clearest difference is update cadence: PsyPad at every 4 months against ETPhone's every 16 months. PsyPad also leads on iOS requirement (13.5 vs 16). ETPhone's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

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

PsyPad ships an update every 4 months, ETPhone every 16 months. The most recent releases landed on October 26, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PsyPad | ETPhone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (6 ratings)](https://appshunter.io/ios/app/etphone/id1529643726/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 16 months |
| Monetization | — | Free |
| Size | 4 MB | 1 MB |
| Requires iOS | **13.5** | 16 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Turpin](https://appshunter.io/developer/735057969) | [Argus Science, LLC](https://appshunter.io/developer/1529643728) |

## What reviewers say

### PsyPad

[App page](https://appshunter.io/ios/app/psypad/id735057966)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is PsyPad free?

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

### Is ETPhone free?

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

### Do PsyPad or ETPhone have ads?

Neither PsyPad nor ETPhone shows ads.

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

PsyPad ships an update every 4 months, and ETPhone every 16 months. Most recently, PsyPad was updated on October 26, 2026 and ETPhone on October 10, 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.*