# CalmFlow vs Yuna Period：Cycle Tracker

The clearest difference is in-app purchases: Yuna Period：Cycle Tracker at none against CalmFlow's 2. CalmFlow's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.5). On price and ads there is nothing between them.

Both are free to download. CalmFlow sells 2 in-app purchases, starting at $4.99 per month. Yuna Period：Cycle Tracker asks for nothing beyond the download.

## The numbers

| Metric | CalmFlow | Yuna Period：Cycle Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 52 MB | 4 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Mark Mager](https://appshunter.io/developer/1874161456) | [飞 江](https://appshunter.io/developer/1815739763) |

## What reviewers say

### CalmFlow

[App page](https://appshunter.io/ios/app/calmflow-menopause-tracker/id6759929944)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalmFlow Pro Monthly | $4.99 | per month |
| CalmFlow Pro Yearly | $29.99 | per year |


### Yuna Period：Cycle Tracker

[App page](https://appshunter.io/ios/app/yuna-periodcycle-tracker/id6778333101)

**In-app purchases:** none


## Frequently asked questions

### Is CalmFlow free?

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

### Is Yuna Period：Cycle Tracker free?

Yuna Period：Cycle Tracker is free to download, with no in-app purchases.

### Do CalmFlow or Yuna Period：Cycle Tracker have ads?

Neither CalmFlow nor Yuna Period：Cycle Tracker 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.*