# Cycles vs Fasted Harmony

The clearest difference is ratings volume: Cycles at 27K against Fasted Harmony's 1. Cycles also leads on update cadence (every 6 days vs every 2 weeks). Fasted Harmony's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Cycles sells 15 in-app purchases, starting at $4.99 per month and Fasted Harmony sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Fasted Harmony holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Cycles has 27K ratings behind it against 1, so its average is the more settled of the two.

Cycles ships an update every 6 days, Fasted Harmony every 2 weeks. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Cycles | Fasted Harmony |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (27K ratings)](https://appshunter.io/ios/app/cycles-period-and-cycle-tracker/id577187307/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fasted-harmony-cycle-syncing/id6763795183/reviews)** |
| Number of ratings | **27K** | 1 |
| Positive reviews | 87.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Freemium | Freemium |
| Size | 97 MB | 134 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [Perigee](https://appshunter.io/developer/577187670) | [Larvotto Ventures LLC](https://appshunter.io/developer/1892090570) |

## 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


### Fasted Harmony

[App page](https://appshunter.io/ios/app/fasted-harmony-cycle-syncing/id6763795183)

This app syncs intermittent fasting windows with your menstrual cycle, optimizing fasting times based on hormonal phases. It offers cycle tracking, symptom logging, and AI-powered guidance to help you fast smarter and achieve better results.

**Highlights:** Phase-specific fasting windows (12-18 hrs), Smart cycle tracking with predictions, AI Hormone Coach for personalized guidance, Symptom, mood, and energy logging, Weight trends overlaid on cycle phases, CSV data export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $45.99 | per year |


## Frequently asked questions

### Is Cycles free?

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

### Is Fasted Harmony free?

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

### Which has better reviews, Cycles or Fasted Harmony?

Fasted Harmony is rated higher. Cycles averages 4.7 out of 5 from 27K ratings, while Fasted Harmony averages 5.0 from 1 ratings.

### Do Cycles or Fasted Harmony have ads?

Neither Cycles nor Fasted Harmony shows ads.

### Which is updated more often, Cycles or Fasted Harmony?

Cycles ships an update every 6 days, and Fasted Harmony every 2 weeks. Most recently, Cycles was updated on October 22, 2026 and Fasted Harmony on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*