# Contraction Tracker & Timer vs Baton

The clearest difference is update cadence: Baton at every 5 days against Contraction Tracker & Timer's fortnightly. Contraction Tracker & Timer's advantage is iOS requirement (15.1 vs 17.0). 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 Baton sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Contraction Tracker & Timer ships an update fortnightly, Baton every 5 days. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Contraction Tracker & Timer | Baton |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 36 MB | 39 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OMAR EL ISMAILI](https://appshunter.io/developer/1896518179) | [Dao Van Thuong](https://appshunter.io/developer/1896341023) |

## What reviewers say

### Contraction Tracker & Timer

[App page](https://appshunter.io/ios/app/contraction-tracker-and-timer/id6767897329)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Monthly Premium | $5.99 | per month |


### Baton

[App page](https://appshunter.io/ios/app/baton-baby-tracker/id6816105118)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Baton Plus Yearly | $9.99 | per year |
| Baton Plus Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Contraction Tracker & Timer free?

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

### Is Baton free?

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

### Do Contraction Tracker & Timer or Baton have ads?

Neither Contraction Tracker & Timer nor Baton shows ads.

### Which is updated more often, Contraction Tracker & Timer or Baton?

Contraction Tracker & Timer ships an update fortnightly, and Baton every 5 days. Most recently, Contraction Tracker & Timer was updated on October 10, 2026 and Baton on October 21, 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.*