# Raynaud vs HRVSpark

Raynaud and HRVSpark both sit at 5.0 stars, but that hides the real split: 100% of HRVSpark's written reviews are positive against 0% of Raynaud's. HRVSpark also leads on update cadence (weekly vs every 5 months). Raynaud's advantage is in-app purchases (none vs 2). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. HRVSpark sells 2 one-off in-app purchases. Raynaud asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Raynaud against 5.0 for HRVSpark. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 0% of Raynaud's written reviews are positive against 100% of HRVSpark's.

Raynaud ships an update every 5 months, HRVSpark weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Raynaud | HRVSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/raynaud/id1445478142/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/hrvspark/id6759590346/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 24 MB | 6 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Bambang Parmanto](https://appshunter.io/developer/1227792027) | [Joel Farthing](https://appshunter.io/developer/1879704683) |

## What reviewers say

### Raynaud

[App page](https://appshunter.io/ios/app/raynaud/id1445478142)

This app allows individuals experiencing Raynaud's symptoms to meticulously log their attacks. Users can document episodes as they happen or recall past events. It also offers a daily diary feature and customizable reminders for notifications.

**Highlights:** Real-time attack logging, Retrospective attack reporting, Daily RCS diary completion, Customizable notification reminders, Attack tracking for Raynaud's symptoms

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

**In-app purchases:** none


### HRVSpark

[App page](https://appshunter.io/ios/app/hrvspark/id6759590346)

Visualize your raw heart rate variability data directly on your Apple Watch face with a dynamic sparkline complication. Get immediate insights into your body's trends without opaque scores or labels. A companion iPhone app provides detailed views and guidance.

**Highlights:** Raw HRV sparkline complication, 8-hour free complication, 24/7, 7-day, 30-day Pro views, Circular gauge and corner complications, iPhone companion app, No interpretation layer, Complication-first design

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HRVSpark Pro | $0.99 | one-time |
| HRVSpark Tip Jar | $4.99 | one-time |


## Frequently asked questions

### Is Raynaud free?

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

### Is HRVSpark free?

HRVSpark is free to download, with in-app purchases available.

### Which has better reviews, Raynaud or HRVSpark?

Raynaud and HRVSpark are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Raynaud or HRVSpark have ads?

Neither Raynaud nor HRVSpark shows ads.

### Which is updated more often, Raynaud or HRVSpark?

Raynaud ships an update every 5 months, and HRVSpark weekly. Most recently, Raynaud was updated on November 2, 2026 and HRVSpark on October 31, 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.*