HRV Sync vs Vitals Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HRV Sync
Effortlessly sync your Heart Rate Variability (HRV) data to the iOS Health app. Connect your fitness account to view HRV trends alongside other health metrics. Prioritizes user privacy with secure token-based login and no data collection.
- One-tap HRV data sync to Health app
- View HRV history and trends
- Secure OAuth login
- Custom date range import
- Privacy-focused data handling
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Track your Heart Rate Variability trends by syncing HRV data to the iOS Health app. HRV Sync connects to your fitness account and imports your daily HRV measurements, making them available alongside all your other health metrics in one place. FEATURES • One-tap sync of HRV data to the Health app • View your HRV history and trends • Secure OAuth login — your password is never stored • Choose custom date ranges to import HOW IT WORKS 1. Log in to your fitness tracker account 2. Select the date range to sync 3. Tap Sync — your HRV data appears in the Health app PRIVACY FIRST • Your credentials are never stored — only secure tokens • Data syncs directly to your device • No data is collected or shared with third parties COMPATIBILITY Compatible with Garmin® fitness devices and accounts. --- This app is an independent product and is not affiliated with, endorsed by, or sponsored by Garmin Ltd. or its subsidiaries. Garmin® is a registered trademark of Garmin Ltd.
Vitals Sync
This app imports key health metrics from your Garmin device that are not automatically synced to your phone's health app. It securely transfers HRV, Respiration, SpO₂, and VO₂ Max data directly from your device.
- Syncs HRV, Respiration, SpO₂, and VO₂ Max
- Automatic background sync
- No duplicate entries
- Secure token-based authentication
- On-device processing
- No app account or tracking
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Vitals Sync imports four metrics your Garmin records but does not send to the Health app: HRV, Respiration, SpO₂, and VO₂ Max. Everything runs on your device. You sign in with your Garmin Connect account. The app reads the data your Garmin watch already recorded and writes it to the Health app on your iPhone. Most syncing tools cover only HRV. Vitals Sync does all four. WHAT YOU NEED • A Garmin Connect account • A Garmin watch that records these metrics, like the Forerunner, Fenix, Venu, vívoactive, Instinct, Epix, or Enduro series, and more WHAT IT SYNCS • Heart Rate Variability (HRV) • Respiration rate • Blood oxygen (SpO₂) • VO₂ Max FEATURES • Automatic background sync • No duplicates. Every reading is written once. • Your password is not stored. Only secure tokens, kept in the iOS Keychain on your device. • No account for this app, no tracking, no analytics, no servers PRIVACY Vitals Sync has no backend. It talks directly from your iPhone to your own Garmin account and to the Health app. We never see, collect, or store your data. Vitals Sync is an independent product and is not affiliated with, endorsed by, or sponsored by Garmin Ltd. or its subsidiaries, or by Apple Inc. Garmin® is a registered trademark of Garmin Ltd.
Screenshots
Verdict
The clearest difference is review sentiment: HRV Sync at 100% against Vitals Sync's 0%. HRV Sync also leads on rating (5.0 vs 1.0) and ratings volume (3 vs 1). Vitals Sync's advantage is update cadence (every 11 days vs every 2 months). On price, ads, in-app purchases and monetization model 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.
HRV Sync holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of HRV Sync's written reviews are positive against 0% of Vitals Sync's.
HRV Sync ships an update every 2 months, Vitals Sync every 11 days. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.
| Parameter | HRV Sync | Vitals Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcin Naglik | UMUR GOKALP |
Customer experience
HRV Sync
Vitals Sync
In-app purchases
HRV Sync
No in-app purchases
Vitals Sync
No in-app purchases





