# HRV Sync vs CalmMate

HRV Sync and CalmMate are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for HRV Sync against 5.0 for CalmMate. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

## The numbers

| Metric | HRV Sync | CalmMate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/hrv-sync/id6756378219/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/calmmate-panic-relief/id6803688076/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 1 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Marcin Naglik](https://appshunter.io/developer/1860354816) | [Mohanaraman Namasivayam](https://appshunter.io/developer/6803688078) |

## What reviewers say

### HRV Sync

[App page](https://appshunter.io/ios/app/hrv-sync/id6756378219)

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.

**Highlights:** One-tap HRV data sync to Health app, View HRV history and trends, Secure OAuth login, Custom date range import, Privacy-focused data handling

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### CalmMate

[App page](https://appshunter.io/ios/app/calmmate-panic-relief/id6803688076)

This app provides immediate support for panic attacks with a one-tap breathing guide and evidence-informed techniques. It also offers daily tools like a meditation timer, journal, and mood tracking to help manage anxiety and promote well-being.

**Highlights:** One-tap panic guide, 9 evidence-informed breathing techniques, 5-4-3-2-1 sensory grounding, Trusted contacts integration, Meditation timer with on-device soundscapes, Gentle journal with mood trends, Apple Watch app with haptic guidance

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is HRV Sync free?

HRV Sync is free to download, with no in-app purchases.

### Is CalmMate free?

CalmMate is free to download, with no in-app purchases.

### Which has better reviews, HRV Sync or CalmMate?

HRV Sync and CalmMate are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do HRV Sync or CalmMate have ads?

Neither HRV Sync nor CalmMate shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*