# Sync vs Period Pal

The clearest difference is in-app purchases: Sync at none against Period Pal's 1. Sync also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Period Pal's advantage is update cadence (every 3 days vs every 3 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Period Pal sells 1 one-off in-app purchase. Sync asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Sync against 5.0 for Period Pal. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Sync ships an update every 3 weeks, Period Pal every 3 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sync | Period Pal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sync-private-period-tracker/id6743987631/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/period-pal-cycle-tracker/id6794356972/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | Free |
| Size | 41 MB | 70 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Wei Jian Wong](https://appshunter.io/developer/1805425419) | [Yash Alpeshkumar Patel](https://appshunter.io/developer/1618259420) |

## What reviewers say

### Sync

[App page](https://appshunter.io/ios/app/sync-private-period-tracker/id6743987631)

A privacy-focused period tracker that stores all your data locally on your device. It offers a simple and ad-free experience for managing your menstrual cycle.

**Highlights:** Privacy-focused design, Local data storage, Ad-free experience, Simple interface, Cycle tracking

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

**In-app purchases:** none


### Period Pal

[App page](https://appshunter.io/ios/app/period-pal-cycle-tracker/id6794356972)

This app allows users to log their menstrual cycle data, including flow, symptoms, and mood. It enables secure, read-only sharing of this information with trusted individuals, with instant revocation of access. The app provides honest cycle and fertile window estimates without intrusive analytics or ads.

**Highlights:** Shared cycle logging, Read-only access for viewers, Instant sharing and revocation, Private data encryption, Honest cycle estimates, No ads or analytics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PeriodPal Lifetime Early Access | $29.99 | one-time |


## Frequently asked questions

### Is Sync free?

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

### Is Period Pal free?

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

### Which has better reviews, Sync or Period Pal?

Sync and Period Pal are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Sync or Period Pal have ads?

Neither Sync nor Period Pal shows ads.

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

Sync ships an update every 3 weeks, and Period Pal every 3 days. Most recently, Sync was updated on October 20, 2026 and Period Pal on October 25, 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.*