# HeartMath vs Sati

The clearest difference is price: HeartMath at Free against Sati's $1.99. HeartMath also leads on ratings volume (4.8K vs 2). Sati's advantage is in-app purchases (none vs 2) and update cadence (every 8 days vs every 3 weeks). On rating, ads and device support there is nothing between them.

HeartMath is free to download; Sati costs $1.99 up front. HeartMath sells 2 in-app purchases, starting at $79.00 per year. Sati asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for HeartMath against 5.0 for Sati. That said, the two scores are not equally well evidenced: HeartMath has 4.8K ratings behind it against 2, so its average is the more settled of the two.

HeartMath ships an update every 3 weeks, Sati every 8 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | HeartMath | Sati |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.9 (4.8K ratings)](https://appshunter.io/ios/app/heartmath/id6446414998/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sati-everyday-mindfulness/id6788493875/reviews)** |
| Number of ratings | **4.8K** | 2 |
| Positive reviews | 73.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | **Freemium** | Paid |
| Size | 381 MB | 4 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [HeartMath Inc.](https://appshunter.io/developer/482739914) | [Craig Anthony Perkins](https://appshunter.io/developer/6783205424) |

## What reviewers say

### HeartMath

[App page](https://appshunter.io/ios/app/heartmath/id6446414998)

Manage stress, improve focus, and enhance emotional well-being with real-time heart-brain coherence feedback. Explore guided sessions and practices based on over 30 years of research to achieve greater calm and balance.

**Highlights:** Real-time HRV coherence feedback, Guided coherence training, Research-supported techniques, Guided meditations and courses, Progress tracking, Stress management and emotional balance support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeartMath Premium | $79.00 | per year |
| HeartMath Premium | $99.99 | per year |

**What reviewers like**

- 🚀 Huge improvement over previous app
- 👍 Easy to use and highly recommended
- 💡 Loaded with HeartMath techniques and courses
- 👍 Powerful tool for nervous system balance and anxiety reduction
- 👍 Helps achieve a better mental state

**What reviewers complain about**

- 🐛 Connectivity issues with sensor
- 🐛 Sensor not compatible with older devices
- 🐛 App crashes and freezes on newer devices
- 🐛 Inaccurate heart rate and coherence readings
- 🐛 Disruptive screen sleep behavior during sessions

**Reported bugs**

- Sensor connection issues on newer devices
- App crashes and freezes on iPhone 16 Pro
- Inaccurate heart rate and coherence readings
- Screen sleep behavior disrupting sessions

**Requested features**

- Add dark mode option
- Allow playing music/sounds during sessions
- Provide audio feedback on coherence levels
- Add session history customization and details
- Improve sensor compatibility with older devices


### Sati

[App page](https://appshunter.io/ios/app/sati-everyday-mindfulness/id6788493875)

This app offers a personalized mindfulness experience with guided meditations, authentic teachings, and mood tracking. It features a unique visual garden that grows with your practice and integrates with Apple Health. All data stays on your device for ultimate privacy.

**Highlights:** Living mind garden visualization, Authentic sourced teachings, Mood-matched reflections and practices, Four meditation types, Apple Watch integration, Optional Apple Health sync, Gentle check-ins and reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is HeartMath free?

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

### Is Sati free?

Sati costs $1.99, with no in-app purchases.

### Which has better reviews, HeartMath or Sati?

Sati is rated higher. HeartMath averages 4.9 out of 5 from 4.8K ratings, while Sati averages 5.0 from 2 ratings.

### Do HeartMath or Sati have ads?

Neither HeartMath nor Sati shows ads.

### Which is updated more often, HeartMath or Sati?

HeartMath ships an update every 3 weeks, and Sati every 8 days. Most recently, HeartMath was updated on November 7, 2026 and Sati on November 5, 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.*