# CalmFlow vs Period Synced

The clearest difference is in-app purchases: Period Synced at none against CalmFlow's 2. Period Synced also leads on iOS requirement (13.0 vs 15.1). CalmFlow's advantage is ads (none vs shown). On price and device support there is nothing between them.

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

## The numbers

| Metric | CalmFlow | Period Synced |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | — |
| Size | 52 MB | 29 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mark Mager](https://appshunter.io/developer/1874161456) | [Ferran Espuna](https://appshunter.io/developer/1608027657) |

## 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 |


### Period Synced

[App page](https://appshunter.io/ios/app/period-synced-cycle-timer/id6771426554)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalmFlow free?

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

### Is Period Synced free?

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

### Do CalmFlow or Period Synced have ads?

Period Synced shows ads; CalmFlow 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.*