# Period Tracker by GP Apps vs Fasted Harmony

The clearest difference is ads: Fasted Harmony at none against Period Tracker by GP Apps's shown. Fasted Harmony also leads on update cadence (every 2 weeks vs every 2 months) and rating (5.0 vs 4.8). Period Tracker by GP Apps's advantage is ratings volume (74K vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Period Tracker by GP Apps sells 1 in-app purchase, starting at $9.99 per year 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 4.8. That said, the two scores are not equally well evidenced: Period Tracker by GP Apps has 74K ratings behind it against 1, so its average is the more settled of the two.

Period Tracker by GP Apps ships an update every 2 months, Fasted Harmony every 2 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | Period Tracker by GP Apps | Fasted Harmony |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (74K ratings)](https://appshunter.io/ios/app/period-tracker-by-gp-apps/id330376830/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fasted-harmony-cycle-syncing/id6763795183/reviews)** |
| Number of ratings | **74K** | 1 |
| Positive reviews | 91.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Freemium | Freemium |
| Size | 64 MB | 134 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [GP Apps](https://appshunter.io/developer/289078803) | [Larvotto Ventures LLC](https://appshunter.io/developer/1892090570) |

## What reviewers say

### Period Tracker by GP Apps

[App page](https://appshunter.io/ios/app/period-tracker-by-gp-apps/id330376830)

Easily track your menstrual cycles, predict future periods, and monitor fertility. Log symptoms, moods, and weight with detailed charts and customizable notes. Includes advanced modes for trying to conceive and pregnancy tracking, with privacy features and data backup.

**Highlights:** Period cycle tracking and prediction, Fertility and ovulation tracking, Symptom and mood logging, Weight and temperature tracking, Customizable notes and symptoms, Pregnancy mode and countdown, Data backup and export

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Member | $9.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate period predictions
- 💡 Customizable symptom and mood tracking
- 📆 Helpful for planning around cycle
- 🤰 Useful for tracking fertility and pregnancy

**What reviewers complain about**

- 🐛 Irregular cycles not handled well
- 🔒 Concerns about data privacy and security
- 💰 Paywall for some features
- 🎨 Outdated or unappealing design

**Reported bugs**

- Period start/end dates not saving correctly
- Ovulation predictions often inaccurate
- Crashes or freezes when logging data

**Requested features**

- Add option to track irregular cycles
- Improve data backup and sync across devices
- Provide more customization options for layout and themes
- Integrate with other health tracking apps


### 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 Period Tracker by GP Apps free?

Period Tracker by GP Apps 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, Period Tracker by GP Apps or Fasted Harmony?

Fasted Harmony is rated higher. Period Tracker by GP Apps averages 4.8 out of 5 from 74K ratings, while Fasted Harmony averages 5.0 from 1 ratings.

### Do Period Tracker by GP Apps or Fasted Harmony have ads?

Period Tracker by GP Apps shows ads; Fasted Harmony does not.

### Which is updated more often, Period Tracker by GP Apps or Fasted Harmony?

Period Tracker by GP Apps ships an update every 2 months, and Fasted Harmony every 2 weeks. Most recently, Period Tracker by GP Apps was updated on October 14, 2026 and Fasted Harmony on October 14, 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.*