# Cadence Period Tracker vs Flow

The clearest difference is ads: Flow at none against Cadence Period Tracker's shown. Flow also leads on update cadence (every 3 weeks vs every 2 months). Cadence Period Tracker's advantage is iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

Cadence Period Tracker ships an update every 2 months, Flow every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Cadence Period Tracker | Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cadence-period-tracker/id6767012189/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 47 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Trevor Frese](https://appshunter.io/developer/1072284943) | [拥军 刘](https://appshunter.io/developer/1896777340) |

## What reviewers say

### Cadence Period Tracker

[App page](https://appshunter.io/ios/app/cadence-period-tracker/id6767012189)

This app helps you track your menstrual cycle with accurate predictions and gentle reminders. It offers a unique feature to share cycle information with a partner, fostering better synchronization and understanding. Your data is private and encrypted, with optional integration with Apple Health.

**Highlights:** Period cycle prediction, Partner cycle sharing, Apple Health two-way sync, Customizable reminders, End-to-end data encryption, Calendar history view

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

**In-app purchases:** none


### Flow

[App page](https://appshunter.io/ios/app/flow-period-tracker/id6791552767)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cadence Period Tracker free?

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

### Is Flow free?

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

### Do Cadence Period Tracker or Flow have ads?

Cadence Period Tracker shows ads; Flow does not.

### Which is updated more often, Cadence Period Tracker or Flow?

Cadence Period Tracker ships an update every 2 months, and Flow every 3 weeks. Most recently, Cadence Period Tracker was updated on October 28, 2026 and Flow on October 24, 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.*