# Tarn. vs Period Tracker; Ovulation App

The clearest difference is in-app purchases: Tarn. at none against Period Tracker; Ovulation App's 2. Tarn. also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Period Tracker; Ovulation App sells 2 in-app purchases, starting at $2.99 per 7 days. Tarn. asks for nothing beyond the download.

## The numbers

| Metric | Tarn. | Period Tracker; Ovulation App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 42 MB | 81 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [suite 110 llc](https://appshunter.io/developer/1369813260) | [MONAD SYSTEMS LTD](https://appshunter.io/developer/6777074225) |

## What reviewers say

### Tarn.

[App page](https://appshunter.io/ios/app/tarn/id6759208133)

**Features:** macOS Compatibility

**In-app purchases:** none


### Period Tracker; Ovulation App

[App page](https://appshunter.io/ios/app/period-tracker-ovulation-app/id6803429181)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium User - Weekly | $2.99 | per 7 days |
| Premium User - Yearly | $29.99 | per year |


## Frequently asked questions

### Is Tarn. free?

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

### Is Period Tracker; Ovulation App free?

Period Tracker; Ovulation App is free to download, with in-app purchases available.

### Do Tarn. or Period Tracker; Ovulation App have ads?

Period Tracker; Ovulation App shows ads; Tarn. does not.

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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.*