# Contraction tracker & timer vs Ring Sizer

The clearest difference is device support: Ring Sizer at 3 against Contraction tracker & timer's 1. Ring Sizer also leads on iOS requirement (15.1 vs 18.5). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Contraction tracker & timer sells 2 in-app purchases, starting at $0.99 per 7 days and Ring Sizer sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Contraction tracker & timer | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 13 MB | 43 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Diaz](https://appshunter.io/developer/1742950982) | [Andrii Kulchytskyi](https://appshunter.io/developer/1759867572) |

## What reviewers say

### Contraction tracker & timer

[App page](https://appshunter.io/ios/app/contraction-tracker-and-timer/id6749600998)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per 7 days |
| Premium | $2.99 | per month |


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-size-measure-app/id6757514085)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Weekly with 3 days trial | $2.99 | per 7 days |
| Ring Sizer Yearly | $14.99 | per year |


## Frequently asked questions

### Is Contraction tracker & timer free?

Contraction tracker & timer is free to download, with in-app purchases available.

### Is Ring Sizer free?

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

### Do Contraction tracker & timer or Ring Sizer have ads?

Neither Contraction tracker & timer nor Ring Sizer 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.*