# Contraction Timer vs Rapida Rhythm

The clearest difference is ads: Rapida Rhythm at none against Contraction Timer's shown. Rapida Rhythm also leads on update cadence (every 3 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Contraction Timer sells 3 in-app purchases, starting at $2.99 per 7 days and Rapida Rhythm sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Contraction Timer ships an update every 2 months, Rapida Rhythm every 3 weeks. The most recent releases landed on September 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Contraction Timer | Rapida Rhythm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 71 MB | 58 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Muhammad Talha](https://appshunter.io/developer/1688144261) | [Ahmet Kabatas](https://appshunter.io/developer/1836276047) |

## What reviewers say

### Contraction Timer

[App page](https://appshunter.io/ios/app/contraction-timer-labor-timer/id6751528256)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.99 | per 7 days |
| Monthly Plan | $6.99 | per month |
| Yearly Plan | $19.99 | per year |


### 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 |


## Frequently asked questions

### Is Contraction Timer free?

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

### Is Rapida Rhythm free?

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

### Do Contraction Timer or Rapida Rhythm have ads?

Contraction Timer shows ads; Rapida Rhythm does not.

### Which is updated more often, Contraction Timer or Rapida Rhythm?

Contraction Timer ships an update every 2 months, and Rapida Rhythm every 3 weeks. Most recently, Contraction Timer was updated on September 19, 2026 and Rapida Rhythm on October 5, 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.*