# Period or Not vs Cycle Sync

The clearest difference is ads: Period or Not at none against Cycle Sync's shown. Period or Not also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (16.4 vs 18.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Period or Not sells 1 one-off in-app purchase and Cycle Sync sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Period or Not ships an update every 3 weeks, Cycle Sync every 2 months. The most recent releases landed on October 20, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Period or Not | Cycle Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/period-or-not/id6737966705/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 44 MB | 78 MB |
| Requires iOS | **16.4** | 18.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Antonija Pek](https://appshunter.io/developer/1099467112) | [Amit Kairon](https://appshunter.io/developer/1750611800) |

## What reviewers say

### Period or Not

[App page](https://appshunter.io/ios/app/period-or-not/id6737966705)

This app tracks your menstrual cycle and provides smart predictions for your period and bleeding duration. It prioritizes user privacy by storing all data locally on your device, with no cloud sync or tracking. You can export your data at any time.

**Highlights:** Local data storage, Smart cycle predictions, Bleeding duration predictions, Data export and backup, Optional calendar sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Turbo | $3.99 | one-time |


### Cycle Sync

[App page](https://appshunter.io/ios/app/cycle-sync-smart-menstruation/id6772445948)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CycleSync Pro — Weekly | $4.99 | per 7 days |
| CycleSync Pro | $9.99 | per month |
| CycleSync Pro | $59.99 | per year |


## Frequently asked questions

### Is Period or Not free?

Period or Not is free to download, with in-app purchases available.

### Is Cycle Sync free?

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

### Do Period or Not or Cycle Sync have ads?

Cycle Sync shows ads; Period or Not does not.

### Which is updated more often, Period or Not or Cycle Sync?

Period or Not ships an update every 3 weeks, and Cycle Sync every 2 months. Most recently, Period or Not was updated on October 20, 2026 and Cycle Sync on October 31, 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.*