# Mendi App vs HeartMath

The clearest difference is in-app purchases: Mendi App at none against HeartMath's 5. Mendi App also leads on update cadence (every 10 days vs every 3 weeks) and iOS requirement (16.0 vs 26.0). HeartMath's advantage is rating (4.9 vs 4.4) and ratings volume (4.7K vs 454). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. HeartMath sells 4 in-app purchases, starting at $39.00 per year. Mendi App asks for nothing beyond the download.

HeartMath holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: HeartMath has 4.7K ratings behind it against 454, so its average is the more settled of the two. Written reviews complicate that: 76% of Mendi App's written reviews are positive against 74% of HeartMath's, so the app with the better star average is not the one people write more warmly about.

Mendi App ships an update every 10 days, HeartMath every 3 weeks. Both last shipped on October 21, 2026.

## The numbers

| Metric | Mendi App | HeartMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (454 ratings)](https://appshunter.io/ios/app/mendi-app/id1548944912/reviews) | **[4.9 (4.7K ratings)](https://appshunter.io/ios/app/heartmath/id6446414998/reviews)** |
| Number of ratings | 454 | **4.7K** |
| Positive reviews | **76.4% of reviews** | 73.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Paid | **Freemium** |
| Size | 489 MB | 185 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Mendi Innovations AB](https://appshunter.io/developer/1463276456) | [HeartMath Inc.](https://appshunter.io/developer/482739914) |

## What reviewers say

### Mendi App

[App page](https://appshunter.io/ios/app/mendi-app/id1548944912)

This app uses a connected headband with advanced neurofeedback technology to monitor brain activity. It provides scientifically-validated cognitive training designed to improve focus, memory, and emotional balance through personalized exercises.

**Highlights:** Advanced neurofeedback technology, Real-time brain activity insights, Scientifically-validated cognitive training, Boosts neuroplasticity, Comfortable and lightweight headband, Bluetooth connectivity

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Helpful for focus and mental health
- 🧠 Improves brain function
- 💤 Helps with sleep and relaxation
- 🤝 Positive impact on daily life

**What reviewers complain about**

- 🐛 App crashes and glitches
- 🔌 Connectivity issues with headband
- 📊 Lack of data/progress tracking
- 🕹️ Limited game/training options
- 🤒 Caused negative side effects for some users

**Reported bugs**

- App freezing and crashing
- Headband sensor issues
- Inconsistent score/progress tracking
- Orientation and display problems

**Requested features**

- More game/training variety
- Advanced data tracking and analytics
- iPad/tablet support
- Customization options for visuals and audio
- Integration with other health/fitness apps


### 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


## Frequently asked questions

### Is Mendi App free?

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

### Is HeartMath free?

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

### Which has better reviews, Mendi App or HeartMath?

HeartMath is rated higher. Mendi App averages 4.4 out of 5 from 454 ratings, while HeartMath averages 4.9 from 4.7K ratings.

### Do Mendi App or HeartMath have ads?

Neither Mendi App nor HeartMath shows ads.

### Which is updated more often, Mendi App or HeartMath?

Mendi App ships an update every 10 days, and HeartMath every 3 weeks. Most recently, Mendi App was updated on October 21, 2026 and HeartMath on October 21, 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.*