# Contraction Timer vs Pulse Baby

The clearest difference is in-app purchases: Pulse Baby at none against Contraction Timer's 1. Pulse Baby also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 17.0). Contraction Timer's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Contraction Timer sells 1 one-off in-app purchase. Pulse Baby asks for nothing beyond the download.

Contraction Timer ships an update every 3 weeks, Pulse Baby weekly. The most recent releases landed on September 27, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Contraction Timer | Pulse Baby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 3 MB | 41 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SALEH MUSTAFA](https://appshunter.io/developer/1875062603) | [adil smaili](https://appshunter.io/developer/1836932504) |

## What reviewers say

### Contraction Timer

[App page](https://appshunter.io/ios/app/contraction-timer-wavely/id6759206862)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wavely Premium | $2.99 | one-time |


### Pulse Baby

[App page](https://appshunter.io/ios/app/pulse-baby-bump-tracker/id6785258096)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contraction Timer free?

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

### Is Pulse Baby free?

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

### Do Contraction Timer or Pulse Baby have ads?

Pulse Baby shows ads; Contraction Timer does not.

### Which is updated more often, Contraction Timer or Pulse Baby?

Contraction Timer ships an update every 3 weeks, and Pulse Baby weekly. Most recently, Contraction Timer was updated on September 27, 2026 and Pulse Baby on October 13, 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.*