# HeartMath vs Lung Fu

The clearest difference is in-app purchases: Lung Fu at none against HeartMath's 5. Lung Fu also leads on review sentiment (100% vs 74%) and iOS requirement (17.6 vs 26.0). HeartMath's advantage is ratings volume (4.7K vs 9). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. HeartMath sells 4 in-app purchases, starting at $39.00 per year. Lung Fu 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 Lung Fu. That said, the two scores are not equally well evidenced: HeartMath has 4.7K ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 74% of HeartMath's written reviews are positive against 100% of Lung Fu's.

HeartMath ships an update every 3 weeks, Lung Fu fortnightly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HeartMath | Lung Fu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (4.7K ratings)](https://appshunter.io/ios/app/heartmath/id6446414998/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/lung-fu-breathwork-game/id6742364674/reviews)** |
| Number of ratings | **4.7K** | 9 |
| Positive reviews | 73.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Freemium | **Free** |
| Size | 185 MB | 104 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [HeartMath Inc.](https://appshunter.io/developer/482739914) | [Presage Security Inc](https://appshunter.io/developer/1526125753) |

## What reviewers say

### HeartMath

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

This app helps you manage stress, improve focus, and achieve optimal performance by aligning your heart, mind, and emotions. It offers guided sessions, immersive journeys, and coherence practices based on over 30 years of research.

**Highlights:** Real-time HRV Coherence Measurement, Coherence Training, Scientifically Validated Techniques, Guided Learning Sessions, Progress Tracking, Heart-Brain Coherence Benefits

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeartMath Premium | $39.00 | per year |
| HeartMath Premium | $59.00 | per year |
| 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


### Lung Fu

[App page](https://appshunter.io/ios/app/lung-fu-breathwork-game/id6742364674)

Transform breathwork into an engaging space adventure. Power thrilling missions by controlling your breath, collecting rewards, and exploring the universe. Improve focus, reduce stress, and enhance sleep with interactive exercises and real-time feedback.

**Highlights:** Interactive guided breathwork exercises, Real-time breathing feedback, Immersive space adventure gameplay, Progress tracking and achievement system, Stress relief and focus enhancement, Promotes better sleep

**In-app purchases:** none


## Frequently asked questions

### Is HeartMath free?

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

### Is Lung Fu free?

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

### Which has better reviews, HeartMath or Lung Fu?

Lung Fu is rated higher. HeartMath averages 4.9 out of 5 from 4.7K ratings, while Lung Fu averages 5.0 from 9 ratings.

### Do HeartMath or Lung Fu have ads?

Neither HeartMath nor Lung Fu shows ads.

### Which is updated more often, HeartMath or Lung Fu?

HeartMath ships an update every 3 weeks, and Lung Fu fortnightly. Most recently, HeartMath was updated on October 30, 2026 and Lung Fu on October 24, 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.*