# PeriCal vs Sync Period

The clearest difference is device support: PeriCal at 3 against Sync Period's 1. PeriCal also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

PeriCal ships an update every 3 weeks, Sync Period monthly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PeriCal | Sync Period |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sync-period/id6761670998/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 28 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Michelle Le Grand](https://appshunter.io/developer/1887356966) | [Start in June LLC](https://appshunter.io/developer/1831523078) |

## What reviewers say

### PeriCal

[App page](https://appshunter.io/ios/app/perical/id6761573546)

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

**In-app purchases:** none


### Sync Period

[App page](https://appshunter.io/ios/app/sync-period/id6761670998)

This health app offers a simple and intuitive way to monitor your menstrual cycles. It allows you to log periods, emotions, symptoms, and energy levels, providing insights and reminders for your next cycle. Personalized notes and a monthly calendar view help you stay informed about your reproductive health.

**Highlights:** Period tracking, Symptom logging, Emotion tracking, Energy level logging, Cycle insights, Period reminders, Notes and calendar view

**In-app purchases:** none


## Frequently asked questions

### Is PeriCal free?

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

### Is Sync Period free?

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

### Do PeriCal or Sync Period have ads?

Neither PeriCal nor Sync Period shows ads.

### Which is updated more often, PeriCal or Sync Period?

PeriCal ships an update every 3 weeks, and Sync Period monthly. Most recently, PeriCal was updated on October 3, 2026 and Sync Period on October 7, 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.*