# Rapida Rhythm vs PatDoc

The clearest difference is in-app purchases: PatDoc at none against Rapida Rhythm's 3. PatDoc also leads on update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rapida Rhythm sells 3 one-off in-app purchases. PatDoc asks for nothing beyond the download.

Rapida Rhythm ships an update every 3 weeks, PatDoc every 3 days. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Rapida Rhythm | PatDoc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 58 MB | 58 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Ahmet Kabatas](https://appshunter.io/developer/1836276047) | [Converge-Pyramid International Limited](https://appshunter.io/developer/1888409095) |

## What reviewers say

### Rapida Rhythm

[App page](https://appshunter.io/ios/app/rapida-rhythm/id6751716376)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-month ECG analysis package | $3.99 | one-time |
| 4-month ECG analysis package | $12.99 | one-time |
| 6-month ECG analysis package | $34.99 | one-time |


### PatDoc

[App page](https://appshunter.io/ios/app/patdoc/id6761284451)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rapida Rhythm free?

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

### Is PatDoc free?

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

### Do Rapida Rhythm or PatDoc have ads?

Neither Rapida Rhythm nor PatDoc shows ads.

### Which is updated more often, Rapida Rhythm or PatDoc?

Rapida Rhythm ships an update every 3 weeks, and PatDoc every 3 days. Most recently, Rapida Rhythm was updated on October 5, 2026 and PatDoc on October 11, 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.*