# BiAffect vs Bipolar Tracker

The clearest difference is in-app purchases: BiAffect at none against Bipolar Tracker's 14. BiAffect also leads on ads (none vs shown) and rating (4.3 vs 4.0). Bipolar Tracker's advantage is review sentiment (60% vs 50%) and device support (4 vs 2). On price, ratings volume and iOS requirement there is nothing between them.

Both are free to download. Bipolar Tracker sells 14 in-app purchases, starting at $4.95 per month. BiAffect asks for nothing beyond the download.

BiAffect holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 12 and 20 respectively. Written reviews complicate that: 50% of BiAffect's written reviews are positive against 60% of Bipolar Tracker's, so the app with the better star average is not the one people write more warmly about.

BiAffect ships an update monthly, Bipolar Tracker every 3 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BiAffect | Bipolar Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (12 ratings)](https://appshunter.io/ios/app/biaffect/id1355144276/reviews)** | [4.0 (20 ratings)](https://appshunter.io/ios/app/bipolar-tracker/id6478313737/reviews) |
| Number of ratings | 12 | **20** |
| Positive reviews | 50.0% of reviews | **60.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 217 MB |
| Requires iOS | 16.1 | **15.5** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [University of Illinois](https://appshunter.io/developer/422670617) | [Digital Therapeutics](https://appshunter.io/developer/1721663167) |

## What reviewers say

### BiAffect

[App page](https://appshunter.io/ios/app/biaffect/id1355144276)

This ResearchKit study explores the link between mood and cognitive function in bipolar disorder using typing patterns and passive sensor data. Both individuals with bipolar disorder and healthy participants are needed to help identify objective biomarkers.

**Highlights:** Keystroke dynamics analysis, Passive sensor data collection, Mood and neurocognitive study, Bipolar disorder research, Control group participation

**In-app purchases:** none


### Bipolar Tracker

[App page](https://appshunter.io/ios/app/bipolar-tracker/id6478313737)

This app helps users manage bipolar disorder by tracking moods, symptoms, and triggers. It offers in-depth analytics, report sharing, and educational content to support mental wellness. Users can also connect with a supportive community.

**Highlights:** Effortless mood tracking, In-depth analytics and charts, Seamless report sharing (PDF/CSV), Customizable experience, Motivational achievements, Privacy and security features, Educational content and community

**Features:** macOS Compatibility, Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| flex pass | $4.95 | per month |
| easy pass | $5.99 | per 7 days |
| weather max | $9.99 | per 3 months |
| flex pass | $9.99 | per month |
| yearly access | $19.99 | per year |
| smart pass | $24.99 | per year |
| Premium Yearly | $29.99 | per year |
| Extended Trial | $34.99 | per year |
| limited discount | $34.99 | per year |
| limited sale | $34.99 | per year |
| yearly access | $44.99 | per year |
| 7-Day Trial | $49.99 | per year |
| store credit | $1.99 | one-time |
| lifetime upgrade | $119.99 | one-time |


## Frequently asked questions

### Is BiAffect free?

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

### Is Bipolar Tracker free?

Bipolar Tracker is free to download, with in-app purchases available.

### Which has better reviews, BiAffect or Bipolar Tracker?

BiAffect is rated higher. BiAffect averages 4.3 out of 5 from 12 ratings, while Bipolar Tracker averages 4.0 from 20 ratings.

### Do BiAffect or Bipolar Tracker have ads?

Bipolar Tracker shows ads; BiAffect does not.

### Which is updated more often, BiAffect or Bipolar Tracker?

BiAffect ships an update monthly, and Bipolar Tracker every 3 months. Most recently, BiAffect was updated on October 9, 2026 and Bipolar Tracker on October 7, 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.*