# HRV Sync vs Project [000]

The clearest difference is update cadence: Project [000] at every 11 days against HRV Sync's every 2 months. Project [000] also leads on iOS requirement (15.0 vs 17.0). HRV Sync's advantage is ratings volume (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

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 Project [000]. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

HRV Sync ships an update every 2 months, Project [000] every 11 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | HRV Sync | Project [000] |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/hrv-sync/id6756378219/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/project-000/id6810717847/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Free | Free |
| Size | 1 MB | 9 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marcin Naglik](https://appshunter.io/developer/1860354816) | [Raymond Platteel](https://appshunter.io/developer/6810718299) |

## 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


### Project [000]

[App page](https://appshunter.io/ios/app/project-000/id6810717847)

This app serves as a central hub for athletes working with a coach, consolidating schedules, workouts, goals, and progress tracking. It allows for detailed workout logging, goal setting with progress visualization, and optional health data syncing. Everything logged is shared with the coach for a more accurate training plan.

**Highlights:** Workout scheduling and reminders, Detailed workout logging with video, Multi-goal tracking with progress visualization, Sync with Apple Health data, Membership and payment management, Real-time data sharing with coach

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HRV Sync free?

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

### Is Project [000] free?

Project [000] is free to download, with no in-app purchases.

### Which has better reviews, HRV Sync or Project [000]?

HRV Sync and Project [000] are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do HRV Sync or Project [000] have ads?

Neither HRV Sync nor Project [000] shows ads.

### Which is updated more often, HRV Sync or Project [000]?

HRV Sync ships an update every 2 months, and Project [000] every 11 days. Most recently, HRV Sync was updated on October 7, 2026 and Project [000] on October 9, 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.*