# Passive Sampler vs Sonar

The clearest difference is in-app purchases: Passive Sampler at none against Sonar's 7. Passive Sampler also leads on iOS requirement (13.0 vs 16.6). Sonar's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Sonar sells 7 in-app purchases, starting at $5.99 per month. Passive Sampler asks for nothing beyond the download.

Passive Sampler ships an update every 3 weeks, Sonar weekly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Passive Sampler | Sonar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (336 ratings)](https://appshunter.io/ios/app/sonar-health-and-performance/id1595073849/reviews)** |
| Number of ratings | — | **336** |
| Positive reviews | — | 67.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 49 MB | 117 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [EuropeAir](https://appshunter.io/developer/725509118) | [Sonar Health, Inc.](https://appshunter.io/developer/1595073851) |

## What reviewers say

### Passive Sampler

[App page](https://appshunter.io/ios/app/passive-sampler/id1533994629)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sonar

[App page](https://appshunter.io/ios/app/sonar-health-and-performance/id1595073849)

Unify data from all your wearables and lifestyle trackers to gain personalized health insights. Understand your sleep, recovery, stress, and activity with AI-powered analysis and daily guidance to optimize your well-being.

**Highlights:** Syncs with multiple wearables and apps, AI-powered personalized health insights, Daily scores for recovery, sleep, and stress, Detailed training analytics, 24/7 vitals monitoring, Tailored health recommendations

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sonar Pro - Monthly (Legacy) | $5.99 | per month |
| Sonar Pro - Monthly | $5.99 | per month |
| Sonar Pro - Annual (Legacy) | $49.99 | per year |
| Sonar Pro - Annual | $49.99 | per year |
| Sonar Pro - Lifetime | $199.99 | one-time |
| Sonar Pro - Lifetime | $249.99 | one-time |
| Sonar Pro - Lifetime | $299.99 | one-time |

**What reviewers like**

- 🚀 Seamless integration
- 👍 Elegant data presentation
- 💡 Comprehensive health tracking
- 🚀 Intuitive user interface
- 👍 Excellent customer support

**What reviewers complain about**

- 🐛 Sync issues
- 💰 Expensive subscription
- 🔍 Lack of transparency on pricing
- 🔍 Limited feature set for free version

**Reported bugs**

- Inconsistent data syncing
- Crashes and freezes
- Unreliable notifications

**Requested features**

- Customizable widgets
- Deeper data analysis and insights
- Improved historical data tracking
- Integration with more wearable devices


## Frequently asked questions

### Is Passive Sampler free?

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

### Is Sonar free?

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

### Do Passive Sampler or Sonar have ads?

Neither Passive Sampler nor Sonar shows ads.

### Which is updated more often, Passive Sampler or Sonar?

Passive Sampler ships an update every 3 weeks, and Sonar weekly. Most recently, Passive Sampler was updated on October 25, 2026 and Sonar 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.*