# Sync vs Emberly Private Period Tracker

The clearest difference is in-app purchases: Sync at none against Emberly Private Period Tracker's 2. Sync also leads on update cadence (every 3 weeks vs every 6 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Emberly Private Period Tracker sells 2 one-off in-app purchases. 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 Emberly Private Period Tracker. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Sync ships an update every 3 weeks, Emberly Private Period Tracker every 6 weeks. The most recent releases landed on October 20, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sync | Emberly Private Period Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sync-private-period-tracker/id6743987631/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/emberly-private-period-tracker/id6793260032/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 41 MB | 7 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Wei Jian Wong](https://appshunter.io/developer/1805425419) | [Furstenburg Digital LLC](https://appshunter.io/developer/6777208880) |

## 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


### Emberly Private Period Tracker

[App page](https://appshunter.io/ios/app/emberly-private-period-tracker/id6793260032)

This app helps you track your menstrual cycle privately and securely. It predicts your period and fertile window, logs daily details like mood and symptoms, and offers discreet reminders. All your data is stored locally on your device, with no account or cloud access required.

**Highlights:** Period and fertile window prediction, Daily logging of flow, mood, and symptoms, Cycle pattern analysis, Discreet period reminders, Face ID or PIN lock, Complete offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-day Trial | Free | one-time |
| Emberly Forever | $9.99 | one-time |


## Frequently asked questions

### Is Sync free?

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

### Is Emberly Private Period Tracker free?

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

### Which has better reviews, Sync or Emberly Private Period Tracker?

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

### Do Sync or Emberly Private Period Tracker have ads?

Neither Sync nor Emberly Private Period Tracker shows ads.

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

Sync ships an update every 3 weeks, and Emberly Private Period Tracker every 6 weeks. Most recently, Sync was updated on October 20, 2026 and Emberly Private Period Tracker on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*