---
title: "Frontier X Plus - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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 electr"
---

# Frontier X Plus — United States

![Frontier X Plus App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/06/23/0a/06230ab4-ea92-c3f4-9a93-2c3d5f9ffa08/AppIcon-0-0-1x_U007emarketing-0-11-0-sRGB-85-220.png/434x0w.png)

**Developer:** [Fourthfrontier](https://apptail.io/developer/fourthfrontier-LFHc)
**Category:** Medical
**Rating:** 3.7/5 (3 ratings)
**Price:** Free
**Bundle ID:** com.fourthfrontier.frontierXPlus2
**Store:** Apple App Store
**Country:** United States
**Version:** 3.3.1 (released 2026-10-19)
**Original Release:** 2024-11-22
**Languages:** English, Dutch, French, German, Italian, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6450455513)
**AppTail Page:** [https://apptail.io/app/frontier-x-plus-fWEr/united-states](https://apptail.io/app/frontier-x-plus-fWEr/united-states)

## Frontier X Plus Description
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

*A Paid Frontier Premium subscription is required to access the full feature set . 
The Premium feature subscription comes with a complimentary 14 days free trial, and continue at a minimal monthly cost starting from USD 29.99, or opt for an annual plan for substantial savings. Please note that prices may fluctuate based on your geographical location, currency, and current exchange rates

The Terms of use are available in the app and our website: 

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.

## Frontier X Plus Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c6/95/ab/c695ab35-4ce6-f845-4e45-6bcb5ad18127/iPhone_6.5__U0028_U00281242x2688_U0029.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d6/3e/e0/d63ee0cd-8bab-3242-cf87-6ff968f84995/iPhone_6.5__U00281242x2688_U0029-1.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f9/7e/da/f97eda15-ee51-0215-4577-d3d6b3e80814/iPhone_6.5__U00281242x2688_U0029-2.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5d/ae/dd/5daedd1b-330f-e60b-321b-48e2a39263f1/iPhone_6.5__U00281242x2688_U0029-3.jpg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9e/50/3d/9e503d6c-24dd-7924-459a-669cdbb3857d/iPhone_6.5__U00281242x2688_U0029-4.jpg/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1e/51/38/1e5138ef-4a56-d4a8-d270-f2c63735e00a/iPhone_6.5__U00281242x2688_U0029-5.jpg/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c4/78/4e/c4784e34-4c82-45ef-bc09-8bea0e4b5b94/iPhone_6.5__U00281242x2688_U0029-6.jpg/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9a/ed/0f/9aed0f61-c98a-ccee-0481-af96cca5a807/iPhone_6.5__U00281242x2688_U0029-7.jpg/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1d/0a/cb/1d0acbc1-7df5-a6ac-9ab2-05c2e7bc5134/iPhone_6.5__U00281242x2688_U0029.jpg/1242x2688.png)

## Frontier X Plus Rating Breakdown in United States
- 5 stars: 1 (33%)
- 4 stars: 1 (33%)
- 3 stars: 0 (0%)
- 2 stars: 1 (33%)
- 1 stars: 0 (0%)

## Frontier X Plus Reviews in United States

### **--- "Not there yet"
this company’s
prior products have been focused on heart rate tracking for the fitness community and now they have produced a device for medical tracking and arrhythmia detection. Unfortunately, it does not do all that is advertised. While focusing on detection of atrial fibrillation, they also advertise automated detection of other arrhythmias, and that the weekly report will provide an arrhythmia burden analysis. Neither of these is true at this time. I don’t have atrial fibrillation, so can’t comment on the ability to monitor this, but there is no automated detection of any other arrhythmia unless you count nonspecific tachycardia and bradycardia, which are not real arrhythmias.
-- Joeyboy204, 2026-09-19

### ****- "Great data, out of date app"
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.
-- mjedmonds, 2026-08-25

[View all Frontier X Plus reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Frontier X Plus In-App Purchases
| Item | Price |
|------|-------|
| Essential Yearly | $239.99 |
| Essential Monthly | $29.99 |



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## Frontier X Plus Available In
- [United States](https://apptail.io/app/frontier-x-plus-fWEr/united-states)
- [Canada](https://apptail.io/app/frontier-x-plus-fWEr/canada)
- [India](https://apptail.io/app/frontier-x-plus-fWEr/india)
- [Germany](https://apptail.io/app/frontier-x-plus-fWEr/germany)

---

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