NM HRV
Fourthfrontier Health & Fitness iPhoneiPadiPod touch
NM HRV is a free Health & Fitness app for iPhone and iPad by Fourthfrontier. Requires iOS 15.5. Updated May 22, 2025.
- Price
- Free
- on the App Store
- Size
- 85 MB
- Age 12+
- Updated
- May 22
- 2025 · v3.3
Screenshots
About NM HRV
This application allows you to connect with and use Frontier X - a revolutionary new wearable device that monitors your lungs and heart. Once you download this application on your iPhone, this will allow you to view your real-time data if you exercise with the Frontier X device. In order to use this application, you need to have the Frontier X device, available at fourthfrontier.com. Frontier X integrates with HealthKit to export your Frontier X activities into the Health app and to read heart rate and biometric data. The Frontier X is a chest-worn device that has the following features: Suitable for recording during Rest, Sleep and Activity. Real-time vibration alerts when you cross your Heart Rate thresholds Easy to use. Strap on and start. Sync later View quick activity summary on device screen Highly accurate Heart Rate data Apps available for iOS. IP67 Waterproof up to 1.5 M Battery: 14+ days of typical use, up to 24-hrs continuous use
What’s new
Version 3.3 · Updated May 22, 2025
• Bug fixes and Improvements.
App privacy
The developer, Fourthfrontier, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
- Contact Info: Email Address, Name
- Health & Fitness: Health
- Location: Precise Location
Used for: Analytics, Product Personalization, App Functionality
Alternatives to NM HRV
Looking for apps like NM HRV? Here are 6 similar apps on the App Store. The highest rated is IgniteFit Training Hub (5.0/5), and all 6 are free to download.
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S-Patch Sports
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Foxtrot: 75 Days Challenge
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IgniteFit Training Hub
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| NM HRV | – | Free | May 22, 2025 | |
| S-Patch Sports | – | Free | Mar 9, 2025 | Compare |
| Neurolign | – | Free | Mar 17, 2026 | Compare |
| Foxtrot: 75 Days Challenge | – | Free | Jan 15, 2026 | Compare |
| Atlas: Workout Tracker Gym Log | – | Free | Aug 30, 2026 | Compare |
| Pacer for Cycling | – | Free | Dec 4, 2025 | Compare |
| IgniteFit Training Hub | 5.0 / 5 (1) | Free | Jan 28, 2026 | Compare |
Compare NM HRV with the top alternatives: ratings, updates, ASO score and keyword gaps →