# Conception Calendar vs Olla Period App

The clearest difference is in-app purchases: Conception Calendar at none against Olla Period App's 2. Conception Calendar also leads on iOS requirement (17.0 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. Olla Period App sells 2 in-app purchases, starting at $2.99 per 7 days. Conception Calendar asks for nothing beyond the download.

## The numbers

| Metric | Conception Calendar | Olla Period App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 1 MB | 16 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Kerim Oz](https://appshunter.io/developer/6793500029) | [Katja Nina Kolari](https://appshunter.io/developer/1839369029) |

## What reviewers say

### Conception Calendar

[App page](https://appshunter.io/ios/app/conception-calendar/id6797316462)

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

**In-app purchases:** none


### Olla Period App

[App page](https://appshunter.io/ios/app/olla-period-app/id6810021264)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Olla Weekly Subscription | $2.99 | per 7 days |
| Olla Annual | $19.99 | per year |


## Frequently asked questions

### Is Conception Calendar free?

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

### Is Olla Period App free?

Olla Period App is free to download, with in-app purchases available.

### Do Conception Calendar or Olla Period App have ads?

Neither Conception Calendar nor Olla Period App 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.*