# Sync vs Cyca

The clearest difference is in-app purchases: Sync at none against Cyca's 1. Sync also leads on rating (5.0 vs 4.7) and iOS requirement (15.1 vs 17.0). Cyca's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (3 vs 1). On price, ads and device support there is nothing between them.

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

Sync holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Sync ships an update every 3 weeks, Cyca weekly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sync | Cyca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sync-private-period-tracker/id6743987631/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/cyca-period-and-cycle-tracker/id6782251621/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 41 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Wei Jian Wong](https://appshunter.io/developer/1805425419) | [Guan Feng Lai](https://appshunter.io/developer/1136144960) |

## 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


### Cyca

[App page](https://appshunter.io/ios/app/cyca-period-and-cycle-tracker/id6782251621)

This app helps you track your menstrual cycle, predict your period, fertile window, and ovulation day. It offers a daily body forecast for energy, mood, and skin, and allows for quick logging of symptoms. Your data stays private and offline on your device.

**Highlights:** Period and cycle tracking, Fertile window and ovulation prediction, Daily body forecast (energy, mood, skin), Quick symptom logging, Private and offline data storage, Period and PMS reminders, Smart planner for best/gentlest days

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cyca Pro | $4.99 | one-time |


## Frequently asked questions

### Is Sync free?

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

### Is Cyca free?

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

### Which has better reviews, Sync or Cyca?

Sync is rated higher. Sync averages 5.0 out of 5 from 1 ratings, while Cyca averages 4.7 from 3 ratings.

### Do Sync or Cyca have ads?

Neither Sync nor Cyca shows ads.

### Which is updated more often, Sync or Cyca?

Sync ships an update every 3 weeks, and Cyca weekly. Most recently, Sync was updated on November 4, 2026 and Cyca on November 5, 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.*