# HRM Heart Rate Monitor — Apple Watch to Bike Computer

> Uses Apple Watch heart rate data with BLE cycling computers. (iPhone/iPad app by App Lane OU.)

- Source: https://appshunter.io/ios/app/hrm-heart-rate-monitor/id1671488058 (this page in markdown: same URL + `.md`)
- Developer: [App Lane OU](https://appshunter.io/developer/1671488060)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 3.10/5 from 23 App Store ratings · 108 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 6 MB
- Languages: American English, Danish, German (Germany), Italian, Japanese
- Released: 2023-02-17
- Data updated: 2026-09-06
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/hrm-heart-rate-monitor/id1671488058/reviews.md

## What is HRM Heart Rate Monitor?

Ditch the chest strap. Use your Apple Watch as a heart rate monitor for your Garmin Edge, Wahoo ELEMNT, Hammerhead Karoo, or any BLE-equipped cycling- or fitness computer — no extra hardware needed.
The HRM Heart Rate Monitor app reads your heart rate from Apple Watch via HealthKit and broadcasts it from your iPhone over Bluetooth Low Energy. Your cycling computer picks it up as a standard heart rate sensor, just like a chest strap — but without one.

COMPATIBLE DEVICES

• Garmin Edge 540, 550, 840, 850, 1040, 1050, 130, Explore, …
• Wahoo ELEMNT BOLT, ROAM, ACE
• Hammerhead Karoo 2, Karoo 3
• Any cycling computer, indoor trainer, or fitness app that accepts BLE heart rate sensors

Other models not listed here may be compatible. Full compatibility list and setup guide: https://gethrm.app/compatibility/

KEEP IT SIMPLE

• Works with your iPhone locked and in your jersey pocket
• Your heart rate data stays in Apple Health — private and secure
• No workout tracking, no training zones, no account required
• Requires both Apple Watch and iPhone

Join over 45628 cyclists already riding strap-free. Try it free for 7 days — then just $4.99/year.

HEALTH DATA

HRM uses HealthKit to read heart rate data from your Apple Watch. This data is only used to broadcast your heart rate to your cycling computer. It is never used for advertising or data mining purposes, and is not shared with third parties.
Terms of Use: https://gethrm.app/legal/terms/

SUBSCRIPTION

HRM Heart Rate Monitor requires a subscription ($4.99/year) after a free 7-day trial. Your subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Your Apple Account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription in your Apple Account Settings at any time.

## Key features

- Connect Apple Watch HR over BLE
- No additional hardware needed
- Send heart rate to bike computers
- Works seamlessly with iPhone
- Reads data from Health app
- Simple and reliable alternative

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Unlock All | $7.99 | per year |


## What do users think of HRM Heart Rate Monitor?

Overall sentiment: negative

**Pros**

- 💡 Innovative solution for Apple Watch heart rate integration
- 💰 Affordable pricing ($5/year)
- 🔋 Minimal battery drain on devices
- 👍 Simple and intuitive user interface
- ⚡ Works reliably when properly configured
- 🎯 Solves the problem of missing ANT+ support on Apple Watch
- 🤝 Responsive developer support

**Cons**

- 🐛 Frequent Bluetooth connectivity issues
- 🔄 Requires constant reconnection and re-pairing
- ⚠️ Inconsistent performance across devices
- 😤 Complex setup process with many manual steps
- 🚫 Limited device compatibility despite claims
- ⏱️ Time-consuming troubleshooting required
- 🔌 Disconnects mid-ride without warning
- 📱 Conflicts with other Bluetooth apps
- ❌ Fails to display heart rate data despite connection
- 🎯 Works only intermittently (1-2 out of 10 uses reported)

**Commonly reported bugs**

- Heart rate shows as N/A or 0 despite sensor connection
- App fails to install on iPhone in some cases
- Bluetooth connection drops during workouts
- Device shows 'Searching' indefinitely for sensor
- App crashes when used with certain bike computers
- Sensor must be deleted and re-added before each ride
- Incompatibility with Garmin Edge 530/830/1040 series despite being listed
- Incompatibility with Wahoo Bolt 1 and some Roam models
- Incompatibility with Garmin Edge Explore 2 and Edge 840
- App hangs on subscription screen during installation
- Watch app fails to detect heart rate from Apple Watch
- Interferes with Wahoo Elemnt app Bluetooth connectivity

**Most requested features**

- One-time purchase option instead of subscription
- Always-on mode option for Apple Watch
- Better handling of disconnections during rides
- Improved compatibility with more Garmin and Wahoo devices
- Automatic reconnection without manual intervention
- Concurrent phone and heart rate pairing for Garmin devices
- Better documentation and troubleshooting guides

## Recent user reviews (10 of 108)

All indexed reviews: https://appshunter.io/ios/app/hrm-heart-rate-monitor/id1671488058/reviews.md

### 2/5 — Wird auch beim Edge Explore 2 nicht erkannt

*2026-06-23*

Hallo lieber HRM Team, nachdem ich zunächst keinen Erfolg mit der Anzeige der Herzfrequenz auf dem iPhone und der Apple Watch hatte, ist es mir jetzt gelungen, die Funktion zum laufen zu bringen. Der Edge Explore 2 ist nun da, koppelt aber nicht. Möglicherweise ist mein Probeabo heute ausgelaufen. Liegt es daran? Der Preis an sich ist fair. Aber: Ich möchte ungern für etwas bezahlen was nicht funktioniert.

**Developer response:** Tönt nach einem Problem zwischen Apple Watch und iPhone 🤔 Auf der Watch wird die Herzfrequenz denn angezeigt? Wenn nein: Start drücken und kuez warten — danach müsste es auch auf dem iPhone sein.
Beste Grüsse
Dominik

### 1/5 — Funktioniert nur manchmal

*2026-06-07*

Die App funktioniert leider nicht wirklich.
Wenn sich der Sensor überhaupt verbindet dann nur nachdem dem vorherigen ent- und wieder gekoppeln (teilweise brauchte ich 5 Versuche). 
Und nur weil sie dann verbunden ist heißt es nicht dass es auch so bleibt, hat sich leider während der Fahrt wieder verabschiedet.
Ich kann die App leider nicht weiterempfehlen.

### 4/5 — edge 1050

*2026-06-06*

geht jetzt! Ist aber nicht ganz easy. Bln jetzt froh dass es funktioniert.

**Developer response:** Freut mich zu hören! 😊 
Beste Grüsse
Dominik

### 3/5 — Vision is there.

*2026-05-19, version 1.7.1*

Unfortunately does not work with Magene 606v2 or 506se for now but the vision is there

### 1/5 — Doesn’t work with Hammerhead 3

*2026-04-20*

The HR is shown on my Apple Watch but isnt send to the hammerhead 3. There is always a HR of 0

**Developer response:** Hi,
If this happens, you have to press „Cancel“ on the bluetooth permission request that‘s shown on the iPhone. I personally use the app with my Karoo 3 and know that this is a bit confusing.
Best regards,
Dominik

### 1/5 — Does not work on Edge 840

*2026-04-10, version 1.7.0*

Spent the entire free trial week to make it work and never connected. I'd like a refund.

### 1/5 — Funktioniert leider nur selten

*2026-03-08*

Die App muss fast immer als neuer Sensor gekoppelt werden. Selbst wenn sie mal funktioniert, kommt es oft zu Abbrüchen. Manchmal, wenn die App laut dem Wahoo elemnt als verbunden angezeigt wird, erscheint die Herzfrequenz trotzdem nicht auf dem Bildschirm. Die 5€ sind für die schlechte Funktion einfach zu viel, die App kann ich nicht empfehlen. Die Begründung des Entwicklers, es läge am Wahoo scheint vorgeschoben, alle anderen Sensoren werden ja auch automatisch erkannt.

### 1/5 — Funktionierte einmal

*2026-02-27*

Habe Hardware, mit der alles funktionieren sollte. Es hat eigentlich nur beim ersten einrichten problemlos funktioniert. Danach wurde der Puls, egal was ich versucht habe, nicht mehr übertragen. Einzigste Lösung ist das entkoppeln und neu verbinden vor jeder Fahrt. Und das funktioniert auch nicht immer und dauert immer ewig.
Dafür sind sogar 5€ und ein Stern zu viel.
Sehr schade.

### 2/5 — Worked a couple time

*2026-02-25, version 1.6.2*

It worked a couple times then it is no longer showing heart rate. Bluetooth connects fine, but no heart rate show up on my watch and phone. I checked Apple Watch heart rate app, it’s fine. Not sure where else to check

### 2/5 — With Garmin 1050 only allows HRM or phone connection

*2026-02-13, version 1.6.2*

Unfortunately with my new Garmin 1050 I can only get the HRM or Phone connection (notifications, live tracking, weather, etc). Not both 👎

## Frequently asked questions about HRM Heart Rate Monitor

### What does the HRM Heart Rate Monitor app do?

This app allows you to use your Apple Watch's heart rate sensor to transmit data to compatible cycling computers via Bluetooth Low Energy (BLE). It acts as a bridge, sending your heart rate from your wrist to your bike computer without requiring any extra hardware like a chest strap.

### What are the key features of this app?

The app's main features include connecting your Apple Watch's heart rate sensor over BLE, sending this data to any BLE-equipped bike computer, and working seamlessly with your iPhone without needing to carry it. It also reads data from the Health app and provides a simple, reliable alternative to traditional heart rate monitoring solutions.

### How much does the HRM Heart Rate Monitor app cost?

This is a paid app that requires a subscription. However, it offers a seven-day free trial period. If you decide not to continue after the trial, you can cancel before it ends to avoid being charged.

### What devices is the HRM Heart Rate Monitor app compatible with?

The app is compatible with almost any BLE-equipped bike computer. You can find an up-to-date compatibility list on the developer's website at https://dominikmaglia.com/hrm-app-user-guide/#device-compatibility. It requires installation on both your Apple Watch and your iPhone to function.

### Can I use my Apple Watch heart rate data for other fitness activities?

While this app specifically focuses on transmitting heart rate data to cycling computers, it reads your heart rate data from the Health app. Your heart rate data is stored securely within the Health app, which can be used for various other fitness tracking purposes on your Apple Watch and iPhone.

## Version history (last 5 releases)

### 1.7.4 — 2026-08-03

This update adds support for more Matrix gym machines and lets you pick a custom Bluetooth name for your device in the settings.

### 1.7.3 — 2026-07-28

This update improves the guidance you get when Apple Health permissions are missing, plus a few small tweaks throughout the app.

### 1.7.2 — 2026-06-06

This update improves Bluetooth connection stability and reduces its energy consumption, and adds protection against accidentally stopping the heart rate sensor on Apple Watch.

### 1.7.1 — 2026-04-13

This update adds compatibility information for the Garmin Edge 550 and Edge 850.

### 1.7.0 — 2026-04-05

This update greatly improves the in-app guidance for connecting various cycling computers such as Garmin Edge, Wahoo ELEMNT, Hammerhead Karoo, and more. It further includes language support for German, Danish, Italian, and Japanese.

## Apps similar to HRM Heart Rate Monitor

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Echo: Watch Heart Rate Monitor](https://appshunter.io/ios/app/echo-watch-heart-rate-monitor/id1494679144) | 4.4 (3,656) | Free | Health & Fitness |
| [Pulsedo: Heart Rate Monitor](https://appshunter.io/ios/app/pulsedo-heart-rate-monitor/id1528974993) | 4.5 (3,281) | Free | Health & Fitness |
| [Heart Rate Plus: Pulse Monitor](https://appshunter.io/ios/app/heart-rate-plus-pulse-monitor/id1061544495) | 4.5 (3,649) | Free | Health & Fitness |
| [Cardiogram: Heart & BP Logger](https://appshunter.io/ios/app/cardiogram-heart-and-bp-logger/id1000017994) | 4.6 (13,372) | Free | Health & Fitness |
| [Cardiio: Heart Rate Monitor](https://appshunter.io/ios/app/cardiio-heart-rate-monitor/id542891434) | 4.7 (58,416) | Free | Health & Fitness |
| [Instant Heart Rate+ HR Monitor](https://appshunter.io/ios/app/instant-heart-rate-plus-hr-monitor/id395042892) | 4.9 (31,886) | Free | Health & Fitness |

## More apps by App Lane OU

- [Lyd - Sonos Control & Widgets](https://appshunter.io/ios/app/lyd-sonos-control-and-widgets/id1451243766)
- [Mowbius - Lawn Care Management](https://appshunter.io/ios/app/mowbius-lawn-care-management/id1518447898)
- [AirHRM — Earbuds Heart Rate](https://appshunter.io/ios/app/airhrm-earbuds-heart-rate/id6761851036)

All apps by App Lane OU: https://appshunter.io/developer/1671488060

## Related topics

[hrm](https://appshunter.io/ios/topics/hrm) · [hrm heart rate monitor](https://appshunter.io/ios/topics/hrm-heart-rate-monitor) · [hrm app](https://appshunter.io/ios/topics/hrm-app) · [hr2vp](https://appshunter.io/ios/topics/hr2vp) · [heart rate monitor free bluetooth](https://appshunter.io/ios/topics/heart-rate-monitor-free-bluetooth) · [heart rate apple watch monitors](https://appshunter.io/ios/topics/heart-rate-apple-watch-monitors) · [watch link heart rate app](https://appshunter.io/ios/topics/watch-link-heart-rate-app) · [vrchat full body tracking](https://appshunter.io/ios/topics/vrchat-full-body-tracking)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*