# Lune Line Cycle Tracker vs Sync Period

The clearest difference is update cadence: Lune Line Cycle Tracker at every 5 days against Sync Period's monthly. Lune Line Cycle Tracker also leads on iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

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

Lune Line Cycle Tracker ships an update every 5 days, Sync Period monthly. The most recent releases landed on October 22, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Lune Line Cycle Tracker | Sync Period |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/lune-line-cycle-tracker/id6737253593/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/sync-period/id6761670998/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Free | Free |
| Size | 75 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Sexology Systems LLC](https://appshunter.io/developer/1775616375) | [Start in June LLC](https://appshunter.io/developer/1831523078) |

## What reviewers say

### Lune Line Cycle Tracker

[App page](https://appshunter.io/ios/app/lune-line-cycle-tracker/id6737253593)

Easily log your menstrual cycle, receive updated predictions, and get gentle reminders to stay prepared. This private tracker helps reduce the monthly mental load. It is not a medical device and should not be used for contraception.

**Highlights:** Track period dates, View cycle stage, Predict upcoming periods, Receive period reminders, Optional PIN for privacy, Browse period care essentials

**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 Lune Line Cycle Tracker free?

Lune Line Cycle Tracker is free to download, with no in-app purchases.

### Is Sync Period free?

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

### Which has better reviews, Lune Line Cycle Tracker or Sync Period?

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

### Do Lune Line Cycle Tracker or Sync Period have ads?

Neither Lune Line Cycle Tracker nor Sync Period shows ads.

### Which is updated more often, Lune Line Cycle Tracker or Sync Period?

Lune Line Cycle Tracker ships an update every 5 days, and Sync Period monthly. Most recently, Lune Line Cycle Tracker was updated on October 22, 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.*