# Cycles vs Flow

The clearest difference is in-app purchases: Flow at none against Cycles's 17. Flow also leads on iOS requirement (12.0 vs 17.0). Cycles's advantage is update cadence (every 6 days vs every 20 months). On price, ads and device support there is nothing between them.

Both are free to download. Cycles sells 15 in-app purchases, starting at $4.99 per month. Flow asks for nothing beyond the download.

Cycles ships an update every 6 days, Flow every 20 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Cycles | Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (27K ratings)](https://appshunter.io/ios/app/cycles-period-and-cycle-tracker/id577187307/reviews)** | — |
| Number of ratings | **27K** | — |
| Positive reviews | 87.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 20 months |
| Monetization | Freemium | — |
| Size | 97 MB | 23 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Perigee](https://appshunter.io/developer/577187670) | [ALLIED SYSTEM CO.,LTD.](https://appshunter.io/developer/1077613622) |

## What reviewers say

### Cycles

[App page](https://appshunter.io/ios/app/cycles-period-and-cycle-tracker/id577187307)

Track your menstrual cycle, fertility, and ovulation with ease. Log observations, predict fertile days, and manage irregular periods. Offers partner connection and detailed insights for better reproductive health management.

**Highlights:** Cycle tracking at a glance, Log body and mood observations, Fertile day predictions, Irregular/missed period support, Partner connect feature, Customized reminders, Detailed observation descriptions

**Features:** Apple Watch app

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cycles Premium | $4.99 | per month |
| Period Calendar & Ovulation | $6.99 | per month |
| Cycle Tracker Premium - Cycles | $6.99 | per month |
| Cycles: Period Calendar | $6.99 | per month |
| Cycles: Period Calendar | $6.99 | per month |
| Cycles Premium | $9.99 | per month |
| Cycles: Period Calendar | $9.99 | per month |
| Cycles Premium | $29.99 | per year |
| Menstrual Cycle Tracker | $29.99 | per year |
| Cycles Premium | $39.99 | per year |
| Cycle Tracker & Calendar | $39.99 | per year |
| Cycles: Period Tracker | $39.99 | per year |
| Cycles Premium | $59.99 | per year |
| Cycles: Cycle Tracker & Period | $59.99 | per year |
| Cycles Pro | $2.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 📆 Accurate cycle tracking
- 🤝 Ability to share with partner
- 🗓️ Helpful for planning pregnancy
- ✨ Clean and intuitive design

**What reviewers complain about**

- 🐛 Issues with data persistence and syncing
- 🔧 Confusing interface for editing cycle details
- 💰 Paid features should be free
- 🤔 Limited customization options
- 📊 Lack of advanced analytics and insights

**Reported bugs**

- Cycle data disappearing or resetting unexpectedly
- Syncing issues between devices and accounts
- Inaccurate cycle predictions and date adjustments

**Requested features**

- Add more symptom and mood options
- Improve cycle editing and data management
- Integrate with health apps for comprehensive tracking
- Provide more insights and predictions based on cycle data
- Allow customization of app appearance and notifications


### Flow

[App page](https://appshunter.io/ios/app/flow/id1199799265)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cycles free?

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

### Is Flow free?

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

### Do Cycles or Flow have ads?

Neither Cycles nor Flow shows ads.

### Which is updated more often, Cycles or Flow?

Cycles ships an update every 6 days, and Flow every 20 months. Most recently, Cycles was updated on October 25, 2026 and Flow on October 12, 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.*