# Raynaud vs RHRSpark

The clearest difference is in-app purchases: Raynaud at none against RHRSpark's 2. RHRSpark's advantage is update cadence (weekly vs every 5 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. RHRSpark 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 RHRSpark. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Raynaud ships an update every 5 months, RHRSpark weekly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Raynaud | RHRSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/raynaud/id1445478142/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/rhrspark/id6762872980/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| 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


### RHRSpark

[App page](https://appshunter.io/ios/app/rhrspark/id6762872980)

Visualize your resting heart rate directly on your Apple Watch face with customizable complications. Choose from various styles and time windows to see your heart rate trends at a glance. Understand how your data is calculated with full transparency.

**Highlights:** Resting heart rate on watch face, Sparkline, gauge, or corner complications, 10 watch face complications, 4 time window options (8H, 24H, 7D, 30D), Two distinct data sources, Full calculation transparency

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RHRSpark Pro | $0.99 | one-time |
| Tip Jar | $2.99 | one-time |


## Frequently asked questions

### Is Raynaud free?

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

### Is RHRSpark free?

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

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

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

### Do Raynaud or RHRSpark have ads?

Neither Raynaud nor RHRSpark shows ads.

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

Raynaud ships an update every 5 months, and RHRSpark weekly. Most recently, Raynaud was updated on October 21, 2026 and RHRSpark on October 24, 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.*