# PolarUs vs BPD Tracker

The clearest difference is in-app purchases: PolarUs at none against BPD Tracker's 15. BPD Tracker's advantage is ratings volume (59 vs 4) and device support (4 vs 2). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. BPD Tracker sells 15 in-app purchases, starting at $4.95 per month. PolarUs asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for PolarUs against 4.1 for BPD Tracker. That said, the two scores are not equally well evidenced: BPD Tracker has 59 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 60% of PolarUs's written reviews are positive against 53% of BPD Tracker's.

PolarUs ships an update every 3 months, BPD Tracker every 2 months. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PolarUs | BPD Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/polarus-bipolar-disorder-tool/id1608631629/reviews) | **[4.1 (59 ratings)](https://appshunter.io/ios/app/bpd-tracker/id6478379313/reviews)** |
| Number of ratings | 4 | **59** |
| Positive reviews | **60.0% of reviews** | 52.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Freemium |
| Size | 122 MB | 215 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Erin Michalak](https://appshunter.io/developer/1748627746) | [Digital Therapeutics](https://appshunter.io/developer/1721663167) |

## What reviewers say

### PolarUs

[App page](https://appshunter.io/ios/app/polarus-bipolar-disorder-tool/id1608631629)

This app helps individuals manage bipolar disorder by tracking quality of life and offering science-based wellness strategies. It provides daily, weekly, and monthly check-ins across various life areas to support balance and well-being.

**Highlights:** Science-informed strategies for bipolar disorder, Track progress and quality of life, Learn new skills and practice strategies, Access curated resource lists, Daily, weekly, and monthly check-ins

**In-app purchases:** none


### BPD Tracker

[App page](https://appshunter.io/ios/app/bpd-tracker/id6478379313)

This app helps individuals manage Borderline Personality Disorder by tracking moods, symptoms, and triggers. It offers in-depth analytics, customizable plans, and educational resources to support emotional wellness and resilience. Connect with a supportive community and share progress reports with healthcare providers.

**Highlights:** Mood and symptom tracking, In-depth analytics and charts, Report sharing with healthcare providers, Customizable care plans and reminders, Motivational achievements, Educational content and community engagement

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite Monthly | $4.95 | per month |
| easy pass | $5.99 | per 7 days |
| weather max | $9.99 | per 3 months |
| flex pass | $9.99 | per month |
| Lite Yearly | $19.99 | per year |
| smart pass | $24.99 | per year |
| Premium Yearly | $29.99 | per year |
| plus | $34.99 | per year |
| limited discount | $34.99 | per year |
| Extended Trial | $39.99 | per year |
| yearly access | $44.99 | per year |
| 7-Day Trial | $49.99 | per year |
| store credit | $1.99 | one-time |
| carey ai credits | $8.99 | one-time |
| lifetime upgrade | $119.99 | one-time |


## Frequently asked questions

### Is PolarUs free?

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

### Is BPD Tracker free?

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

### Which has better reviews, PolarUs or BPD Tracker?

BPD Tracker is rated higher. PolarUs averages 4.0 out of 5 from 4 ratings, while BPD Tracker averages 4.1 from 59 ratings.

### Do PolarUs or BPD Tracker have ads?

Neither PolarUs nor BPD Tracker shows ads.

### Which is updated more often, PolarUs or BPD Tracker?

PolarUs ships an update every 3 months, and BPD Tracker every 2 months. Most recently, PolarUs was updated on September 9, 2026 and BPD Tracker on September 18, 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.*