# Contraction Tracker Timer! vs Birthtide

The clearest difference is update cadence: Birthtide at every 3 weeks against Contraction Tracker Timer!'s every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Contraction Tracker Timer! sells 2 in-app purchases, starting at $2.99 per 7 days and Birthtide sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Contraction Tracker Timer! ships an update every 2 months, Birthtide every 3 weeks. The most recent releases landed on October 26, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Contraction Tracker Timer! | Birthtide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 83 MB | 19 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rafia Hossain Anika](https://appshunter.io/developer/1831203696) | [Mustafa Onur ILGAZ](https://appshunter.io/developer/1489815803) |

## What reviewers say

### Contraction Tracker Timer!

[App page](https://appshunter.io/ios/app/contraction-tracker-timer/id6754606281)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Lifetime | $5.99 | one-time |


### Birthtide

[App page](https://appshunter.io/ios/app/birthtide-contraction-timer/id6809006472)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Birthtide Pro | $7.99 | one-time |


## Frequently asked questions

### Is Contraction Tracker Timer! free?

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

### Is Birthtide free?

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

### Do Contraction Tracker Timer! or Birthtide have ads?

Neither Contraction Tracker Timer! nor Birthtide shows ads.

### Which is updated more often, Contraction Tracker Timer! or Birthtide?

Contraction Tracker Timer! ships an update every 2 months, and Birthtide every 3 weeks. Most recently, Contraction Tracker Timer! was updated on October 26, 2026 and Birthtide on November 6, 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.*