# HeartBeatSync vs Contraction Timer

The clearest difference is in-app purchases: HeartBeatSync at none against Contraction Timer's 2. Contraction Timer's advantage is iOS requirement (17.6 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Contraction Timer sells 2 in-app purchases, starting at $6.99 per 7 days. HeartBeatSync asks for nothing beyond the download.

## The numbers

| Metric | HeartBeatSync | Contraction Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 4 MB | 22 MB |
| Requires iOS | 26.4 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Jakub Malis](https://appshunter.io/developer/1891159882) | [KELVIN SENANU WALLACE](https://appshunter.io/developer/1888050842) |

## What reviewers say

### HeartBeatSync

[App page](https://appshunter.io/ios/app/heartbeatsync/id6761734259)

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

**In-app purchases:** none


### Contraction Timer

[App page](https://appshunter.io/ios/app/contraction-timer-labor-track/id6796542078)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access for a week | $6.99 | per 7 days |
| Pro Access for 3 months | $29.99 | per 3 months |


## Frequently asked questions

### Is HeartBeatSync free?

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

### Is Contraction Timer free?

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

### Do HeartBeatSync or Contraction Timer have ads?

Neither HeartBeatSync nor Contraction Timer shows ads.

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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.*