# Periodically vs Cycle Sync

The clearest difference is iOS requirement: Periodically at 13.0 against Cycle Sync's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Periodically sells 1 one-off in-app purchase and Cycle Sync sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Periodically | Cycle Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/periodically/id6761598562/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 55 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Danna Alexandra Garcia Lamas](https://appshunter.io/developer/1890376940) | [Amit Kairon](https://appshunter.io/developer/1750611800) |

## What reviewers say

### Periodically

[App page](https://appshunter.io/ios/app/periodically/id6761598562)

Track your menstrual cycle with a simple, private, and focused experience. Log periods, moods, and symptoms, and view historical data. An optional one-time upgrade unlocks advanced statistics and customization.

**Highlights:** Cycle tracking, Mood and symptom logging, History view, Next cycle estimate, Advanced statistics, PDF export, Custom themes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Periodically Premium | $5.99 | one-time |


### Cycle Sync

[App page](https://appshunter.io/ios/app/cycle-sync-smart-menstruation/id6772445948)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CycleSync Pro — Weekly | $4.99 | per 7 days |
| CycleSync Pro | $9.99 | per month |
| CycleSync Pro | $59.99 | per year |


## Frequently asked questions

### Is Periodically free?

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

### Is Cycle Sync free?

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

### Do Periodically or Cycle Sync have ads?

Neither Periodically nor Cycle Sync shows ads.

### Which is updated more often, Periodically or Cycle Sync?

Periodically ships an update fortnightly, and Cycle Sync fortnightly. Most recently, Periodically was updated on October 2, 2026 and Cycle Sync on October 15, 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.*