# Flow State Cycle vs Cycle Sync

The clearest difference is in-app purchases: Flow State Cycle at none against Cycle Sync's 3. Flow State Cycle also leads on iOS requirement (15.1 vs 18.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cycle Sync sells 3 in-app purchases, starting at $4.99 per 7 days. Flow State Cycle asks for nothing beyond the download.

Flow State Cycle ships an update every 3 weeks, Cycle Sync fortnightly. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Flow State Cycle | Cycle Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flow-state-cycle/id6762103850/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 33 MB | 55 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brett East](https://appshunter.io/developer/1892495827) | [Amit Kairon](https://appshunter.io/developer/1750611800) |

## What reviewers say

### Flow State Cycle

[App page](https://appshunter.io/ios/app/flow-state-cycle/id6762103850)

This private period tracker logs your cycle with a single tap and uses your data for smart predictions. It offers symptom and mood tracking, cycle insights, and doctor-ready reports. Your health data stays on your device, ensuring complete privacy.

**Highlights:** Smart cycle predictions, Symptom and mood logging, Cycle insights and patterns, Doctor-ready PDF reports, Health ecosystem sync, CSV data export, Dark mode support

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Flow State Cycle free?

Flow State Cycle is free to download, with no in-app purchases.

### Is Cycle Sync free?

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

### Do Flow State Cycle or Cycle Sync have ads?

Neither Flow State Cycle nor Cycle Sync shows ads.

### Which is updated more often, Flow State Cycle or Cycle Sync?

Flow State Cycle ships an update every 3 weeks, and Cycle Sync fortnightly. Most recently, Flow State Cycle was updated on October 5, 2026 and Cycle Sync on September 29, 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.*