# Period Tracker vs Full Moon Flow

The clearest difference is update cadence: Full Moon Flow at every 9 days against Period Tracker's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Period Tracker ships an update every 4 months, Full Moon Flow every 9 days. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Period Tracker | Full Moon Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Size | 3 MB | 52 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) | [Daniel Delellis](https://appshunter.io/developer/6797146548) |

## What reviewers say

### Period Tracker

[App page](https://appshunter.io/ios/app/period-tracker-private-diary/id6772134716)

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

**In-app purchases:** none


### Full Moon Flow

[App page](https://appshunter.io/ios/app/full-moon-flow/id6797146546)

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

**In-app purchases:** none


## Frequently asked questions

### Is Period Tracker free?

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

### Is Full Moon Flow free?

Full Moon Flow is free to download, with no in-app purchases.

### Do Period Tracker or Full Moon Flow have ads?

Neither Period Tracker nor Full Moon Flow shows ads.

### Which is updated more often, Period Tracker or Full Moon Flow?

Period Tracker ships an update every 4 months, and Full Moon Flow every 9 days. Most recently, Period Tracker was updated on October 12, 2026 and Full Moon Flow on October 8, 2026.

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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.*