# EARS Mobile Sensing vs BiAffect3

The clearest difference is rating: BiAffect3 at 5.0 against EARS Mobile Sensing's 2.7. EARS Mobile Sensing's advantage is update cadence (every 5 weeks vs every 4 months) and ratings volume (30 vs 6). 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.

BiAffect3 holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: EARS Mobile Sensing has 30 ratings behind it against 6, so its average is the more settled of the two.

EARS Mobile Sensing ships an update every 5 weeks, BiAffect3 every 4 months. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | EARS Mobile Sensing | BiAffect3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (30 ratings)](https://appshunter.io/ios/app/ears-mobile-sensing/id1442007322/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/biaffect3/id6451423106/reviews)** |
| Number of ratings | **30** | 6 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 97 MB | 30 MB |
| Requires iOS | 16.6 | **16.1** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Ksana Health Inc.](https://appshunter.io/developer/1516560765) | [University of Illinois at Urbana-Champaign](https://appshunter.io/developer/422670617) |

## What reviewers say

### EARS Mobile Sensing

[App page](https://appshunter.io/ios/app/ears-mobile-sensing/id1442007322)

This app collects digital information from your mobile device to help researchers study behavioral health patterns. It aims to improve mental health support, especially for young people and underserved groups, by analyzing data like mobility, screen time, and sleep. Your data is kept safe and is not sold or used for advertising.

**Highlights:** Behavioral health data collection, GPS for mobility patterns, Keyboard sentiment analysis, Music and media listening data, Screen time and device usage tracking, Sleep data integration, Call status monitoring

**In-app purchases:** none


### BiAffect3

[App page](https://appshunter.io/ios/app/biaffect3/id6451423106)

This app helps you track your mood and cognitive function using your iPhone's keyboard and sensor data. It analyzes typing patterns to provide insights into mental health and assists researchers in developing better diagnostic tools for mood disorders.

**Highlights:** Mood tracking, Neurocognitive functioning assessment, Keystroke dynamics analysis, Sensor data collection, Mental health insights, Research participation

**In-app purchases:** none


## Frequently asked questions

### Is EARS Mobile Sensing free?

EARS Mobile Sensing is free to download, with no in-app purchases.

### Is BiAffect3 free?

BiAffect3 is free to download, with no in-app purchases.

### Which has better reviews, EARS Mobile Sensing or BiAffect3?

BiAffect3 is rated higher. EARS Mobile Sensing averages 2.7 out of 5 from 30 ratings, while BiAffect3 averages 5.0 from 6 ratings.

### Do EARS Mobile Sensing or BiAffect3 have ads?

Neither EARS Mobile Sensing nor BiAffect3 shows ads.

### Which is updated more often, EARS Mobile Sensing or BiAffect3?

EARS Mobile Sensing ships an update every 5 weeks, and BiAffect3 every 4 months. Most recently, EARS Mobile Sensing was updated on September 18, 2026 and BiAffect3 on June 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.*