# Union Broadcaster vs HeartMath

The clearest difference is in-app purchases: Union Broadcaster at none against HeartMath's 5. Union Broadcaster also leads on device support (3 vs 1) and iOS requirement (14.2 vs 26.0). On price, 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. Union Broadcaster asks for nothing beyond the download.

Union Broadcaster ships an update fortnightly, HeartMath every 3 weeks. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Union Broadcaster | HeartMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (4.6K ratings)](https://appshunter.io/ios/app/heartmath/id6446414998/reviews)** |
| Number of ratings | — | **4.6K** |
| Positive reviews | — | 73.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 6 MB | 185 MB |
| Requires iOS | **14.2** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Superset Labs, Inc.](https://appshunter.io/developer/1538850405) | [HeartMath Inc.](https://appshunter.io/developer/482739914) |

## What reviewers say

### Union Broadcaster

[App page](https://appshunter.io/ios/app/union-broadcaster/id1551231737)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Union Broadcaster free?

Union Broadcaster is free to download, with no in-app purchases.

### Is HeartMath free?

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

### Do Union Broadcaster or HeartMath have ads?

Neither Union Broadcaster nor HeartMath shows ads.

### Which is updated more often, Union Broadcaster or HeartMath?

Union Broadcaster ships an update fortnightly, and HeartMath every 3 weeks. Most recently, Union Broadcaster was updated on October 3, 2026 and HeartMath on October 16, 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.*