# Frontier X Plus

> Wearable ECG device app for ambulatory cardiac monitoring and heart rhythm analysis. (iPhone/iPad app by Fourthfrontier.)

- Source: https://appshunter.io/ios/app/frontier-x-plus/id6450455513 (this page in markdown: same URL + `.md`)
- Developer: [Fourthfrontier](https://appshunter.io/developer/1331846764)
- Category: Medical, Health & Fitness
- Price: Free
- Rating: 4.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 97 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, European Spanish
- Released: 2024-11-22
- Data updated: 2026-08-29
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/frontier-x-plus/id6450455513/reviews.md

## What is Frontier X Plus?

The Frontier X Plus App pairs with the US FDA 510(k)-cleared Frontier X Plus (510(k) number: K240794), an ambulatory ECG monitoring device intended to record, store, and transfer single-channel electrocardiogram (ECG) rhythms for evaluation and long-term monitoring.

The Frontier X Plus is a wearable ECG recorder and display product, worn comfortably via a chest strap. The Frontier X Plus phone app connects to the device via bluetooth to visualize ECG and wellness parameters in real time, sync recorded data, and review your heart health anytime, anywhere.
Frontier X Plus integrates with HealthKit to export your Frontier X Plus activities into the Health app and to read heart rate and biometric data.

Key Features
1. Medical-Grade ECG Monitoring
    Capture single-lead, medical-grade ECG data anytime—without wires, patches, or adhesives. Supports both real-time and stored monitoring.

2. Real-Time AFib Detection & Arrhythmia Burden Analysis
    Get clinically validated insights:
    • Detect AFib, bradycardia, and tachycardia in real time
    • Beat-by-beat ECG analysis
    • Rhythm trends across activity and sleep

3. Arrhythmia Detection Across Sleep, Rest & Active Activities
    Medical-grade ECG detects irregular heart rhythms across all phases of your day, including sleep, rest, and active activity.

4. Shareable ECG Link 
    Easily share Live ECG link with your doctor for remote monitoring

5. Fast, Hassle-Free Setup
    Wear the device on your chest, pair it with the app via Bluetooth, and begin monitoring.

    Who It’s For
    • Individuals with diagnosed arrhythmias or heart conditions
    • Post-cardiac procedure patients
    • Athletes and fitness-focused individuals need precise heart rhythm tracking

About Frontier X Plus
Developed by Fourth Frontier, Frontier X Plus is the world’s first FDA 510(k)-cleared wearable ECG device engineered for real-world ambulatory cardiac monitoring. With over 18,000 users, Fourth Frontier has successfully detected more than 26,000 + cardiac events, supporting proactive and effective heart health management.

## Key features

- Medical-grade ECG monitoring
- Real-time AFib and arrhythmia detection
- Arrhythmia analysis across sleep, rest, and activity
- Shareable ECG link for remote monitoring
- Bluetooth connectivity with wearable device
- HealthKit integration

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/frontier-x-plus/id6450455513/reviews.md

### 4/5 — Great data, out of date app

*2026-08-25*

This is the only FDA approved continuous, long term ecg monitor out there. The app functions well, but it is a little bit out of date with modern standards and is somewhat unintuitive. But the data is all there and that is very useful if you have a condition that benefits from continuous ECG monitoring.

## Frequently asked questions about Frontier X Plus

### What is Frontier X Plus?

Frontier X Plus is a medical device app that pairs with a US FDA 510(k)-cleared wearable ECG monitoring device. It allows users to record, store, and transfer single-channel electrocardiogram rhythms for evaluation and long-term heart health monitoring.

### Does Frontier X Plus detect AFib?

Yes, Frontier X Plus offers real-time AFib detection and arrhythmia burden analysis. It provides clinically validated insights, including beat-by-beat ECG analysis and rhythm trends across activity and sleep.

### How does Frontier X Plus connect to the device?

The Frontier X Plus app connects to the wearable ECG device via Bluetooth. This connection allows for real-time visualization of ECG and wellness parameters, syncing of recorded data, and easy setup.

### Can I share my ECG data with my doctor using Frontier X Plus?

Yes, Frontier X Plus features a shareable ECG link that allows you to easily share live ECG data with your doctor for remote monitoring. This facilitates proactive and effective heart health management.

### What devices does Frontier X Plus support?

Frontier X Plus is supported on iPhone and iPod devices. The app is designed to work seamlessly with the wearable Frontier X Plus ECG monitoring device.

### How often is Frontier X Plus updated?

The latest version of Frontier X Plus is 3.2.3, last updated on August 24, 2026. This indicates a commitment to ongoing development and improvements for the application.

### Does Frontier X Plus have ads?

No, Frontier X Plus does not contain advertisements. The app is designed to provide a focused and uninterrupted experience for users monitoring their heart health.

### What is the user rating for Frontier X Plus?

Frontier X Plus has a rating of 4.0 stars based on 1 rating. This suggests a generally positive reception from its current user base.

## Version history (last 5 releases)

### 3.2.3 — 2026-08-24

•⁠  General bug fixes and performance enhancements.

### 3.2.2 — 2026-08-17

•⁠  General bug fixes and performance enhancements.

### 3.2.1 — 2026-06-25

•⁠  General bug fixes and performance enhancements.

### 3.2.0 — 2026-06-25

•⁠  General bug fixes and performance enhancements.

### 3.1.2 — 2025-08-07

•⁠  Added the ability to add symptoms during an activity.
•⁠  General bug fixes and performance enhancements.

## Apps similar to Frontier X Plus

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Wearlinq](https://appshunter.io/ios/app/wearlinq/id6444319637) | 5.0 (5) | Free | Medical |
| [SonoHealth 2.0](https://appshunter.io/ios/app/sonohealth-20/id1573370251) | 2.9 (18) | Free | Medical |
| [Heart Connect Remote Software](https://appshunter.io/ios/app/heart-connect-remote-software/id1161012596) | 5.0 (4) | Free | Medical |
| [CardiaCare AFib](https://appshunter.io/ios/app/cardiacare-afib/id6444675956) | — | Free | Medical |
| [KardiaRx](https://appshunter.io/ios/app/kardiarx/id1571374454) | 4.3 (20) | Free | Medical |

## More apps by Fourthfrontier

- [Frontier X](https://appshunter.io/ios/app/frontier-x/id1483444499)
- [Welbeck FX](https://appshunter.io/ios/app/welbeck-fx/id1638701179)
- [NM HRV](https://appshunter.io/ios/app/nm-hrv/id6450173490)

All apps by Fourthfrontier: https://appshunter.io/developer/1331846764

## Related topics

[fourth frontier](https://appshunter.io/ios/topics/fourth-frontier)

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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 2026-08-29.*