# Tyd Period Tracker vs Sync

The clearest difference is in-app purchases: Sync at none against Tyd Period Tracker's 3. Sync also leads on iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Tyd Period Tracker sells 3 in-app purchases, starting at $1.00 per month. Sync asks for nothing beyond the download.

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

Tyd Period Tracker ships an update every 5 weeks, Sync every 3 weeks. The most recent releases landed on June 12, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Tyd Period Tracker | Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tyd-period-tracker/id6475370726/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sync-private-period-tracker/id6743987631/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 41 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Richard Kresslein](https://appshunter.io/developer/1654544600) | [Wei Jian Wong](https://appshunter.io/developer/1805425419) |

## What reviewers say

### Tyd Period Tracker

[App page](https://appshunter.io/ios/app/tyd-period-tracker/id6475370726)

This app helps you privately track your menstrual cycle without requiring logins or displaying ads. It offers unique features like a tampon change timer and insightful period statistics, all while prioritizing user data privacy.

**Highlights:** Private data tracking, No login required, Ad-free experience, Tampon change timer, Period statistics, Data privacy focused

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tyd+ Monthly | $1.00 | per month |
| Tyd+ Yearly | $9.00 | per year |
| Tyd+ | $9.99 | one-time |


### 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


## Frequently asked questions

### Is Tyd Period Tracker free?

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

### Is Sync free?

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

### Which has better reviews, Tyd Period Tracker or Sync?

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

### Do Tyd Period Tracker or Sync have ads?

Neither Tyd Period Tracker nor Sync shows ads.

### Which is updated more often, Tyd Period Tracker or Sync?

Tyd Period Tracker ships an update every 5 weeks, and Sync every 3 weeks. Most recently, Tyd Period Tracker was updated on June 12, 2026 and Sync on September 2, 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.*