# Menstrual Calendar FMC

> Period Tracker, Fertile Days

Canonical page: [https://chrome-stats.com/d/id292760731](https://chrome-stats.com/d/id292760731)

## Overview

- **ID:** `id292760731`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Tamtris Web Services Inc.
- **Category:** Health & Fitness
- **Rating:** 4.60 / 5 (193 ratings)
- **Version:** 10.0
- **Last updated:** 2026-01-29
- **First published:** 2008-10-10
- **Size:** 32 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/menstrual-calendar-fmc/id292760731)
- **Website:** [https://www.fertilityfriend.com](https://www.fertilityfriend.com/)
- **Privacy policy:** [https://www.fertilityfriend.com/ffprivacy.html](https://www.fertilityfriend.com/ffprivacy.html)

## Description

FMC is an offline, privacy-focused menstrual calendar for Chrome that records periods, fertility signs, moods, weight, and daily notes with customizable fields. You can customize data entries, log daily notes, switch themes, and use the app offline without internet or accounts. Features include double-tap to enter data, pregnancy mode on the calendar, and discreet notifications.

It offers automatic cycle length calculations, cycle stats reports, and color-coded predictions for start dates and the most fertile days. Reminders, calendar integration, and optional backup with FertilityFriend enhance usability, while privacy-by-design keeps data on-device with optional passcode or biometric protection. This extension is designed for educational, personal health tracking with an emphasis on privacy and user control.

## Rankings

- #106,291 — Overall

## Review summary

Users praise the app for its simplicity, reliability over many years, and a strong data history that aids fertility planning and education. Its calendar view and predictable cycle predictions are valued. However, recurring issues include stability problems after updates, potential loss of years of data when upgrading devices, limited data export/sharing options (especially to Health or doctors), and a sense of infrequent updates. Overall, it’s a highly valued tool with notable risks around stability and data portability.

### Pros

- Simple and straightforward interface that is easy to use.
- Reliable, long-term cycle tracking with accurate predictions.
- Keeps a rich, multi-year history of cycles and supports restoration across devices.
- Educational value for understanding the reproductive system and fertility planning.
- Clear calendar view that visually tracks cycle length and fertile days.

### Cons

- Stability issues: app often won’t open or crashes after updates.
- Significant risk of data loss when upgrading or moving to a new device.
- Limited data export/sharing options (no easy export to Health app or to doctors).
- Perceived infrequent updates/maintenance.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id292760731)