CycleSync

Tracking since Apr 1, 2026.

Changelog

• Apr 16, 2026
  description

  Introduction
  CycleSync is a privacy-focused menstrual tracking extension that helps you understand and work with your natural cycle. Log symptoms, track patterns, and receive personalized recommendations to optimize your wellbeing throughout each phase of your cycle.
  Unlike cloud-based period trackers, CycleSync stores all your sensitive data locally in your browser, giving you complete control and privacy over your personal health information.
  Key Features
  🔒 Privacy-First Approach
  
  All your cycle data stays on your device
  No accounts or sign-ups required
  No data sharing with third parties
  
  📊 Comprehensive Cycle Tracking
  
  Monitor period dates, flow intensity, and cycle length
  Track physical and emotional symptoms
  Log energy levels, sleep quality, and more
  
  📅 Smart Calendar
  
  Visual cycle calendar with period, fertile window, and ovulation predictions
  Automatic updates based on your unique patterns
  Color-coded phases for easy reference
  
  🔍 Personalized Insights
  
  Learn how your cycle affects mood, energy, and productivity
  Discover your most common symptoms by cycle phase
  Track changes and patterns over time
  
  💡 Phase-Based Recommendations
  
  Receive tailored tips for each phase of your cycle
  Optimize your activities based on your natural energy levels
  Plan ahead with accurate predictions
  
  ⏰ Helpful Reminders
  
  Optional notifications for upcoming periods and ovulation
  Daily symptom logging reminders
  Customizable notification settings
  
  🎨 Customization Options
  
  Multiple theme choices to personalize your experience
  Adjust cycle length and tracking preferences
  Import and export your data anytime
  
  Why Use CycleSync?
  Understanding your menstrual cycle gives you powerful insights into your body's natural patterns. CycleSync helps you harness this knowledge to:
  
  Plan important events around your cycle
  Reduce the impact of PMS and cycle-related symptoms
  Optimize your productivity and exercise routines
  Make informed decisions about your health and wellbeing
  Take control of your reproductive health
  
  Who Is CycleSync For?
  CycleSync is designed for anyone who menstruates and wants to:
  
  Track their cycle with complete privacy
  Understand the connection between their cycle and overall wellbeing
  Use cycle awareness as a tool for better health management
  Have easy access to their cycle data directly in their browser
  
  Privacy Commitment
  Your health data is personal. That's why CycleSync:
  
  Stores all data locally on your device
  Never sends sensitive information to external servers
  Gives you complete control to export or delete your data at any time
  Has no user accounts or login information to secure
  
  Start synchronising your life with your natural cycle today with CycleSync!
  
  ---
  
  Version 1.0.1
  This update focuses on stability and cross-platform compatibility improvements to ensure a consistent experience for all users.
  
  Resolved layout issues affecting Windows users
  Improved font rendering and text display across all operating systems
  Enhanced popup sizing to prevent content from being clipped
  Optimised scrollbar behaviour for a cleaner interface
  Minor visual refinements across the calendar, dashboard, and settings views
  
  We appreciate your support and feedback as we continue to improve CycleSync.
  
  
  ---
  
  Version 1.0.2
  This update introduces a first-time setup experience to help new users get personalised cycle tracking right away.
  
  Added onboarding flow for new installs — enter your last period date and cycle length to see accurate phase and prediction data from the start
  Fixed an issue where the dashboard showed placeholder data instead of your actual cycle information
  Improved first-run experience across all supported platforms
  We are listening to our users ☺️🙏🏿
  
  ---
  
  Version 1.0.3
  Further layout and rendering improvements for Windows users.
  We are listening to our users ☺️🙏🏿
  
  
  ----
  
  Version 1.0.4
  
  ✅ Onboarding flow (with cycle length + period length steps)
  ✅ Period countdown bar
  ✅ Period started button
  ✅ Symptom date defaults to today
  ✅ Uninstall feedback form (moved to background.js)
  ✅ manifest.json warning fixed
  
  We are listening to our users ☺️🙏🏿
  
  
  ----
  
  What's New in v1.0.5
  We've been listening! This update focuses on making CycleSync even better based on early user feedback.
  ✨ Review Prompt : After using CycleSync for a few days, you'll see a gentle nudge to leave a review. Your feedback helps us improve and helps other women discover the extension.
  🐛 Bug Fixes & Stability : General improvements to make the experience smoother across all devices and operating systems.
  
  
  ----
  
  What's New in v1.0.6
  ☕ Support CycleSync — CycleSync is free and always will be. If it's been helpful to you, you can now support the project with a small coffee via Ko-fi. You'll find the support button in the Settings tab, and after a week of tracking we'll give you a gentle nudge too. No pressure — every coffee genuinely helps keep development going.
  🐛 Bug Fixes & Stability — Further improvements to make the experience smoother across all devices.

  Introduction
  CycleSync is a privacy-focused menstrual tracking extension that helps you understand and work with your natural cycle. Log symptoms, track patterns, and receive personalized recommendations to optimize your wellbeing throughout each phase of your cycle.
  Unlike cloud-based period trackers, CycleSync stores all your sensitive data locally in your browser, giving you complete control and privacy over your personal health information.
  Key Features
  🔒 Privacy-First Approach
  
  All your cycle data stays on your device
  No accounts or sign-ups required
  No data sharing with third parties
  
  📊 Comprehensive Cycle Tracking
  
  Monitor period dates, flow intensity, and cycle length
  Track physical and emotional symptoms
  Log energy levels, sleep quality, and more
  
  📅 Smart Calendar
  
  Visual cycle calendar with period, fertile window, and ovulation predictions
  Automatic updates based on your unique patterns
  Color-coded phases for easy reference
  
  🔍 Personalized Insights
  
  Learn how your cycle affects mood, energy, and productivity
  Discover your most common symptoms by cycle phase
  Track changes and patterns over time
  
  💡 Phase-Based Recommendations
  
  Receive tailored tips for each phase of your cycle
  Optimize your activities based on your natural energy levels
  Plan ahead with accurate predictions
  
  ⏰ Helpful Reminders
  
  Optional notifications for upcoming periods and ovulation
  Daily symptom logging reminders
  Customizable notification settings
  
  🎨 Customization Options
  
  Multiple theme choices to personalize your experience
  Adjust cycle length and tracking preferences
  Import and export your data anytime
  
  Why Use CycleSync?
  Understanding your menstrual cycle gives you powerful insights into your body's natural patterns. CycleSync helps you harness this knowledge to:
  
  Plan important events around your cycle
  Reduce the impact of PMS and cycle-related symptoms
  Optimize your productivity and exercise routines
  Make informed decisions about your health and wellbeing
  Take control of your reproductive health
  
  Who Is CycleSync For?
  CycleSync is designed for anyone who menstruates and wants to:
  
  Track their cycle with complete privacy
  Understand the connection between their cycle and overall wellbeing
  Use cycle awareness as a tool for better health management
  Have easy access to their cycle data directly in their browser
  
  Privacy Commitment
  Your health data is personal. That's why CycleSync:
  
  Stores all data locally on your device
  Never sends sensitive information to external servers
  Gives you complete control to export or delete your data at any time
  Has no user accounts or login information to secure
  
  Start synchronising your life with your natural cycle today with CycleSync!
  
  ---
  
  Version 1.0.1
  This update focuses on stability and cross-platform compatibility improvements to ensure a consistent experience for all users.
  
  Resolved layout issues affecting Windows users
  Improved font rendering and text display across all operating systems
  Enhanced popup sizing to prevent content from being clipped
  Optimised scrollbar behaviour for a cleaner interface
  Minor visual refinements across the calendar, dashboard, and settings views
  
  We appreciate your support and feedback as we continue to improve CycleSync.
  
  
  ---
  
  Version 1.0.2
  This update introduces a first-time setup experience to help new users get personalised cycle tracking right away.
  
  Added onboarding flow for new installs — enter your last period date and cycle length to see accurate phase and prediction data from the start
  Fixed an issue where the dashboard showed placeholder data instead of your actual cycle information
  Improved first-run experience across all supported platforms
  We are listening to our users ☺️🙏🏿
  
  ---
  
  Version 1.0.3
  Further layout and rendering improvements for Windows users.
  We are listening to our users ☺️🙏🏿
  
  
  ----
  
  Version 1.0.4
  
  ✅ Onboarding flow (with cycle length + period length steps)
  ✅ Period countdown bar
  ✅ Period started button
  ✅ Symptom date defaults to today
  ✅ Uninstall feedback form (moved to background.js)
  ✅ manifest.json warning fixed
  
  We are listening to our users ☺️🙏🏿
  
  
  ----
  
  What's New in v1.0.5
  We've been listening! This update focuses on making CycleSync even better based on early user feedback.
  ✨ Review Prompt : After using CycleSync for a few days, you'll see a gentle nudge to leave a review. Your feedback helps us improve and helps other women discover the extension.
  🐛 Bug Fixes & Stability : General improvements to make the experience smoother across all devices and operating systems.
  
  
  ----
  
  What's New in v1.0.6
  ☕ Support CycleSync — CycleSync is free and always will be. If it's been helpful to you, you can now support the project with a small coffee via Ko-fi. You'll find the support button in the Settings tab, and after a week of tracking we'll give you a gentle nudge too. No pressure — every coffee genuinely helps keep development going.
  🐛 Bug Fixes & Stability — Further improvements to make the experience smoother across all devices.
  
  
  ---
  
  What's New in v1.0.7
  🔄 Cross-Device Sync — Your cycle data now follows you everywhere. Install CycleSync on any device where you use Chrome and your data syncs automatically. No account needed — existing users are migrated automatically with no data loss.
  📐 Customisable Popup Size — You asked, we listened! You can now choose Small, Medium or Large popup size from the Settings tab to suit your screen and preference.
  🗓️ Google Calendar & Trello — These integrations are coming in a future update. We've updated the Settings tab to make this clearer so there's no confusion.
  🐛 Bug fixes and stability improvements

Permissions & access

Permissions

storagealarmsnotifications

Host access

None declared

Screenshots

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