# Rapida Rhythm vs Contraction Timer

The clearest difference is device support: Rapida Rhythm at 3 against Contraction Timer's 1. Rapida Rhythm also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Rapida Rhythm sells 3 one-off in-app purchases and Contraction Timer sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rapida Rhythm ships an update every 3 weeks, Contraction Timer fortnightly. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Rapida Rhythm | Contraction Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (12 ratings)](https://appshunter.io/ios/app/contraction-timer-leleka/id6751771349/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Subscription |
| Size | 58 MB | 61 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Ahmet Kabatas](https://appshunter.io/developer/1836276047) | [Maksym Varnalii](https://appshunter.io/developer/1836734428) |

## 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 |


### Contraction Timer

[App page](https://appshunter.io/ios/app/contraction-timer-leleka/id6751771349)

This app helps track labor progress with contraction timing, intensity, and frequency analysis. It offers guided breathing exercises, a hospital bag checklist, and alerts for active labor. It also includes features for tracking baby kicks and postpartum recovery.

**Highlights:** Contraction timing, duration, and frequency tracking, Smart labor progress analysis, Guided breathing exercises for relaxation, Hospital bag checklist, Baby kick counter, Postpartum recovery checklist, Exportable labor logs

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contraction Timer PRO Weekly | $2.99 | per 7 days |
| Contraction Timer PRO Weekly | $3.99 | per 7 days |
| Contraction Timer PRO Weekly | $4.99 | per 7 days |
| Contraction Timer PRO Annual | $14.99 | per year |
| Contraction Timer PRO 3-Month | $29.99 | per 3 months |
| Contraction Timer PRO 1 Year | $49.99 | per year |


## Frequently asked questions

### Is Rapida Rhythm free?

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

### Is Contraction Timer free?

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

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

Neither Rapida Rhythm nor Contraction Timer shows ads.

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

Rapida Rhythm ships an update every 3 weeks, and Contraction Timer fortnightly. Most recently, Rapida Rhythm was updated on September 18, 2026 and Contraction Timer on September 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.*