# ReViiV vs HeartMath

The clearest difference is rating: HeartMath at 4.9 against ReViiV's 4.5. HeartMath also leads on ratings volume (4.7K vs 8). ReViiV's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. ReViiV sells 2 in-app purchases, starting at $0.99 per month and HeartMath sells 4 in-app purchases, starting at $39.00 per year. Whichever you choose, the download price is not the number that matters.

HeartMath holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: HeartMath has 4.7K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 75% of ReViiV'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.

ReViiV ships an update monthly, HeartMath every 3 weeks. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | ReViiV | HeartMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/reviiv/id1557588292/reviews) | **[4.9 (4.7K ratings)](https://appshunter.io/ios/app/heartmath/id6446414998/reviews)** |
| Number of ratings | 8 | **4.7K** |
| Positive reviews | **75.0% of reviews** | 73.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 25 MB | 185 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Martysoft LLC](https://appshunter.io/developer/1493293014) | [HeartMath Inc.](https://appshunter.io/developer/482739914) |

## What reviewers say

### ReViiV

[App page](https://appshunter.io/ios/app/reviiv/id1557588292)

This app offers customized daily breathing exercises designed to alleviate post-viral symptoms like fatigue, brain fog, and loss of taste/smell. It utilizes scientifically backed techniques across 16 progressive stages to promote steady improvement and symptom relief.

**Highlights:** Customized daily breathing exercises, 16 progressive stages for improvement, Relief from fatigue, brain fog, taste/smell loss, 8 scientifically backed techniques, Weekly progress assessments and graphs, Detailed guides and technique resources

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Long Haul Breathing Therapy | $0.99 | per month |
| Long Haul Breathing Therapy | $6.99 | per year |


### 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 ReViiV free?

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

### Is HeartMath free?

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

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

HeartMath is rated higher. ReViiV averages 4.5 out of 5 from 8 ratings, while HeartMath averages 4.9 from 4.7K ratings.

### Do ReViiV or HeartMath have ads?

Neither ReViiV nor HeartMath shows ads.

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

ReViiV ships an update monthly, and HeartMath every 3 weeks. Most recently, ReViiV was updated on October 14, 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.*