# BiAffect3 vs Mind Atlas

The clearest difference is in-app purchases: BiAffect3 at none against Mind Atlas's 2. Mind Atlas's advantage is update cadence (every 4 days vs every 4 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Mind Atlas sells 2 in-app purchases, starting at $49.99 per month. BiAffect3 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for BiAffect3 against 5.0 for Mind Atlas. Both are backed by a comparable volume of ratings — 7 and 7 respectively.

BiAffect3 ships an update every 4 months, Mind Atlas every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BiAffect3 | Mind Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (7 ratings)](https://appshunter.io/ios/app/biaffect3/id6451423106/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/mind-atlas/id6749017136/reviews)** |
| Number of ratings | 7 | 7 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 30 MB | 333 MB |
| Requires iOS | 16.1 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [University of Illinois](https://appshunter.io/developer/422670617) | [Dabble Health Inc](https://appshunter.io/developer/1669422969) |

## What reviewers say

### 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


### Mind Atlas

[App page](https://appshunter.io/ios/app/mind-atlas/id6749017136)

Transform personal photos into engaging cognitive exercises. This app uses familiar faces and memories to create personalized brain training activities, enhancing memory and attention through interactive games and voice-guided stories. Track your progress with intuitive charts and enjoy a private, on-device experience.

**Highlights:** Personalized games using photo library, Memory Matches and Photo Puzzles, Voice-guided Memory Stories, Cognitive trend tracking, 100% on-device photo processing, Offline functionality, Community and research program support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $49.99 | per month |
| Annual Access | $479.99 | per year |


## Frequently asked questions

### Is BiAffect3 free?

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

### Is Mind Atlas free?

Mind Atlas is free to download, with in-app purchases available.

### Which has better reviews, BiAffect3 or Mind Atlas?

Mind Atlas is rated higher. BiAffect3 averages 4.9 out of 5 from 7 ratings, while Mind Atlas averages 5.0 from 7 ratings.

### Do BiAffect3 or Mind Atlas have ads?

Neither BiAffect3 nor Mind Atlas shows ads.

### Which is updated more often, BiAffect3 or Mind Atlas?

BiAffect3 ships an update every 4 months, and Mind Atlas every 4 days. Most recently, BiAffect3 was updated on November 3, 2026 and Mind Atlas on October 30, 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.*