NM HRV vs Health Data Export App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NM HRV
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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
Health Data Export App
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Health Data Export App lets you export all your Apple Health data as CSV files — ready for spreadsheets, research, or personal records. WHAT YOU CAN EXPORT • Activity: Steps, calories burned, distance, exercise time, stand time, flights climbed • Body: Weight, height, BMI, body fat, lean body mass, waist circumference • Heart & Vitals: Heart rate, resting heart rate, HRV, blood pressure, respiratory rate, SpO₂, VO₂max • Nutrition: Calories, carbohydrates, fat, protein, sugar, water, caffeine • Sleep: Sleep duration and stages • Environment & Audio: Environmental noise, headphone audio exposure, UV exposure HOW IT WORKS 1. Choose a health data type 2. Select a date range 3. Export as CSV and share to any app — spreadsheets, cloud storage, or email YOUR DATA STAYS ON YOUR DEVICE This app only reads data you choose to share. Nothing is uploaded to external servers. Health data never leaves your device without your explicit action.
Screenshots
Verdict
The clearest difference is ads: NM HRV at none against Health Data Export App's shown. NM HRV also leads on iOS requirement (15.5 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NM HRV ships an update fortnightly, Health Data Export App every 8 days. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.
| Parameter | NM HRV | Health Data Export App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 8 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 85 MB | 31 MB |
| Age rating | 12+ | 4+ |
| Developer | Fourthfrontier | Hiroyuki Fujisawa |
In-app purchases
NM HRV
No in-app purchases
Health Data Export App
No in-app purchases
Questions
Is NM HRV free?
Is Health Data Export App free?
Do NM HRV or Health Data Export App have ads?
Which is updated more often, NM HRV or Health Data Export App?
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