# myMerlinPulse™

> Remote monitoring for Abbott Bluetooth-enabled implantable cardiac devices. (iPhone/iPad app by St. Jude Medical, Inc..)

- Source: https://appshunter.io/ios/app/mymerlinpulse/id1491399428 (this page in markdown: same URL + `.md`)
- Developer: [St. Jude Medical, Inc.](https://appshunter.io/developer/591520737)
- Category: Medical
- Price: Free
- Rating: 3.70/5 from 57 App Store ratings · 16 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 140 MB
- Languages: American English, Arabic, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French (France) and 29 more
- Released: 2020-09-09
- Data updated: 2026-08-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mymerlinpulse/id1491399428/reviews.md

## What is myMerlinPulse™?

The myMerlinPulse™ app is designed to provide remote monitoring capability of your Abbott Bluetooth®-enabled implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) to your healthcare provider. The app uses Bluetooth® wireless technology to transfer your heart rhythm information between the device, the app, and your clinic. The app’s user-friendly interface allows you to:
-	Check if your heart device is connected and ready for remote monitoring.
-	View the history of transmissions.
-	Get information about your cardiac device, including its battery status.
-	Send manual transmissions to your healthcare provider.
-	Receive notifications if there has been a significant change in the performance of your implanted device.

The app uses an internet connection through a Wi-Fi or cellular network to send information about your implanted heart device to your healthcare provider. Your information is encrypted to ensure the privacy and security of the transmission.

The app is intended for use by people who have an Abbott implanted heart device and access to a mobile device. The app will only function once paired with your implanted device. Do not rely on the app during a medical emergency. If you experience a medical emergency, seek medical attention immediately.

This app is not currently supported on tablet devices. Please note that this product is intended for use by or under the direction of a physician. Prior to using these devices/app, please review the Instructions for Use for a complete listing of indications, contraindications, warnings, precautions, potential adverse events, and directions for use.

## Key features

- Remote monitoring of ICD/CRT-D devices
- Bluetooth® wireless data transfer
- Check device connection status
- View transmission history
- Cardiac device battery status
- Manual transmission capability
- Performance change notifications

## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/mymerlinpulse/id1491399428/reviews.md

### 1/5 — Cannot pair

*2026-05-07*

Enter date of birth and serial number as instructed, app says correct and reenter information.

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2026-0112364. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 1/5 — New phone

*2026-04-09*

I can’t get app to connect to new IPHONE 17 Max Plus

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2026-0063232. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 1/5 — Black hole

*2026-03-15*

Lacks even basic notification capabilities for wearer of device or EMS or even emergency contacts. Renders device and app basically useless

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2026-0054345. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 3/5 — No internet off and on for a week now.

*2026-03-14*

So the past week the ap says no internet service. I have service an all my other appliances in my home. Is this a glitch or something going on with Abbott?

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2026-0054346. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 2/5 — App stop working

*2025-08-26*

I’ve had my device for about 6 months now and the app just stop working on my phone on Aug 15th 3 days after getting my device tested at the doctor. I’ve tried deleting the app and reinstalling but it’s not working. I just reset my phone and is still having the same issue. It has never done this before I do close out the app sometimes because I didn’t know I was suppose to leave it running in the background but after visiting the doctor I never force close the app. I have a older iPhone which is the 7 and I can’t afford to go upgrade at the moment.

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2025-0150759. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 5/5 — Concerned

*2025-08-05*

In the last few weeks the app appears to be having an issue. I keep the app open and running; however, sometimes I notice the Home Screen shows a symbol that appears to indicate it’s not connected. I’m not receiving any kind of message or warning, but it’s stuck on that screen. I have to close then reopen the app to see the normal home screen. My concern is if the app is actually connected and receiving info during the times it appears to be down. I’ve had my device and used this app for almost 4 years and this is not something it’s done before. Not sure what to rate this comment…5 stars based on past performance, but there’s no wiggle room for performance if it’s not doing its very important job!

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2025-0128498. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 5/5 — New to Merlin

*2025-07-26*

The App has a clear design interface, nothing fussy or confusing. I hope they do develop an App that will work with Apple Watch. I don’t always have my phone with me.

**Developer response:** Thank you for the feedback. We'll pass it along to our team.

### 1/5 — Glitch since roster

*2025-07-15*

Ever since the new update the app constantly reboots and restarts. Since this is connected to a heart device this very concerning since it’s how information gets back to the doctor. This should be fixed asap and is very concerning. It was working fine until the update.

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2025-0116557. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 3/5 — Splash screen?

*2025-05-18*

The latest update added a splash screen not just when you start the app, but EVERY TIME you bring it to foreground AND it plays music   Why?  If I happen to wake up briefly at 4am an just want to see if it did its 2am reading, it plays its opening music and wakes my wife up.  What app plays music when it’s all ready open and just brought to foreground ?

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2025-0082547. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

### 1/5 — Needs work

*2025-01-05*

The app currently lacks a way to update your contact information. If you change your phone number, re-pairing the app to your device becomes difficult, as the activation code can only be sent to the old, inactive number. Without an automated update feature, users are forced to wait until regular business hours for assistance. Implementing this feature would simplify the process for users, clinic staff, and app support, while also preventing gaps in monitoring when phone numbers or devices change.

**Developer response:** Thank you for your message. We would like to know more about the details. Please send us your contact info by sending an email to SY_Complaints@abbott.com with Complaint ID: PER-2025-0005921. We will get back to you as soon as possible. Note: For your own privacy, please do not leave your personal contact details in the comment section.

## Frequently asked questions about myMerlinPulse™

### What is myMerlinPulse™ used for?

myMerlinPulse™ allows for the remote monitoring of your Abbott Bluetooth-enabled implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) by your healthcare provider. It securely transfers heart rhythm information and provides updates on your device's status.

### How does myMerlinPulse™ transfer data?

The app uses Bluetooth® wireless technology to transfer heart rhythm information between your implanted device, the app, and your clinic. It requires an internet connection via Wi-Fi or cellular network for transmissions.

### Can I check my device's battery status with myMerlinPulse™?

Yes, myMerlinPulse™ allows you to view information about your cardiac device, including its battery status. This feature helps you stay informed about your device's overall health.

### Does myMerlinPulse™ provide alerts for device issues?

Yes, you can receive notifications if there has been a significant change in the performance of your implanted device. This proactive alert system helps ensure timely medical attention if needed.

### Is myMerlinPulse™ available on tablets?

No, myMerlinPulse™ is not currently supported on tablet devices. It is designed for use on iPhones and iPods.

### Is myMerlinPulse™ secure?

Yes, the app uses an internet connection to send information about your implanted heart device to your healthcare provider. Your information is encrypted to ensure the privacy and security of the transmission.

### What is the update frequency for myMerlinPulse™?

The latest version of myMerlinPulse™ is 2.0, and it was last updated on May 10, 2025. This indicates active development and support for the application.

### What is the age rating for myMerlinPulse™?

myMerlinPulse™ has an age rating of 17+. This is likely due to the sensitive nature of medical data and the target audience for the application.

## Version history (last 4 releases)

### 2.1.0 — 2026-07-27

The new version of the app provides improved usability, security and performance, and compatibility with the latest app store requirements.

### 2.0 — 2025-05-10

The new version of the app provides improved usability, security and performance, and compatibility with the latest app store requirements.

### 1.0.107 — 2023-09-19

The new version of the app provides improved security and compatibility with the latest app store requirements.

### 1.0.100 — 2020-09-09

No release notes.

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## More apps by St. Jude Medical, Inc.

- [Patient Controller NR - US](https://appshunter.io/ios/app/patient-controller-nr-us/id1059237634)
- [myCardioMEMS™](https://appshunter.io/ios/app/mycardiomems/id1208574774)
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- [myMerlin™ - GLB](https://appshunter.io/ios/app/mymerlin-glb/id1592596985)
- [SJM Calendar+](https://appshunter.io/ios/app/sjm-calendar-plus/id6759627740)

All apps by St. Jude Medical, Inc.: https://appshunter.io/developer/591520737

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*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 2026-08-21.*
