# micgrw vs HRV Sync

The clearest difference is ads: HRV Sync at none against micgrw's shown. HRV Sync also leads on update cadence (every 2 months vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

micgrw ships an update every 5 months, HRV Sync every 2 months. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | micgrw | HRV Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hrv-sync/id6756378219/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 34 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Timothy Ford](https://appshunter.io/developer/1729504922) | [Marcin Naglik](https://appshunter.io/developer/1860354816) |

## What reviewers say

### micgrw

[App page](https://appshunter.io/ios/app/micgrw/id6477503533)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is micgrw free?

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

### Is HRV Sync free?

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

### Do micgrw or HRV Sync have ads?

micgrw shows ads; HRV Sync does not.

### Which is updated more often, micgrw or HRV Sync?

micgrw ships an update every 5 months, and HRV Sync every 2 months. Most recently, micgrw was updated on September 14, 2026 and HRV Sync on September 20, 2026.

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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.*