Cycle Sync: Smart Menstruation
Cycle-aware calendar companion
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
CYCLE-AWARE CALENDAR
CycleSync helps professional women align their work schedules with their natural menstrual cycle phases. Instead of fighting through low-energy days, you get smart suggestions to move demanding meetings to days when your focus and energy peak.
WORK WITH YOUR RHYTHM, NOT AGAINST IT
Your cycle isn't an obstacle. It's a compass.
Menstrual Phase (Winter)
Rest and recovery. Reschedule high-stakes meetings.
Follicular Phase (Spring)
Rising energy. Schedule creative work and planning.
Ovulation Phase (Summer)
Peak performance. Take on negotiations and leadership.
Luteal Phase (Autumn)
Focused wind-down. Finish projects and organize.
SMART RESCHEDULING
CycleSync connects to your calendar and automatically detects:
• Events on heavy-flow days
• Events on rest-phase days
• Dense meeting days during focus phases (3+ events)
One tap on a conflict card opens the Time Slot Picker. Your available slots on better days are pre-calculated. Reschedule in seconds. An undo option gives you 10 seconds to reverse.
RULES, NOT GUESSWORK.
The recommendation engine is rule-based:
1. Your cycle history predicts your phase for any date.
2. Your phase preferences determine focus or rest classifications.
3. Your calendar events are flagged when they conflict with your classifications.
4. Available slots on recommended-phase days enable one-tap rescheduling.
EVERYTHING IN ONE SUBSCRIPTION
An active CycleSync Pro subscription unlocks the whole planner:
• Cycle logging, phase prediction and a 14-day cycle outlook
• Dashboard with today's phase and a 7-day week view
• Calendar sync with Apple Calendar and Google Calendar
• Conflict detection and unlimited reschedule suggestions
• One-tap rescheduling with a 10-second undo
• Five notification types: reschedule alerts, phase transitions, period predictions, tomorrow's preview and re-engagement nudges
• Insights: energy curve, seasonal capacities and full cycle history
• Cycle import from Apple Health
• Export your cycle history as JSON or CSV
• Light, Dark and System themes
BEFORE YOU SUBSCRIBE
Onboarding and the plan comparison are free, so you can see how CycleSync works before you pay. The planner opens once your subscription is active, and everything you have already logged stays on your device. Weekly, monthly and yearly plans are available in the app.
PRIVACY FIRST
• All cycle data is stored locally on your device
• No cloud sync and no tracking
• Health data is read-only from Apple Health
• Export your data anytime as JSON or CSV
HOW TO START
1. Open CycleSync and log your last period start date.
2. Connect your calendar using Apple Calendar or Google Calendar.
3. Set your typical cycle length (default: 28 days).
4. Review your dashboard. Suggested reschedules appear automatically.
Download CycleSync and work with your natural rhythm.
By subscribing, you agree to our Terms of Use (EULA): https://cyclesync.tunnxo.com/legal/eula.html
Privacy Policy: https://cyclesync.tunnxo.com/legal/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• A WORKDAY THAT FITS
Choose what matters most — more focused time, fewer meetings, or a steadier pace — then try an interactive example and build your own plan.
• A PRIVATE AI COACH
Optional, on-device and fully offline. Dictate how you feel and it picks out flow, mood and notes. Daily advice built from your own data — nothing leaves your phone.
• CHECK IN, GET GUIDANCE
Log how you feel each day. CycleSync turns your check-ins into guidance for today and the days ahead.
• FOURTEEN DAYS AHEAD
See your cycle outlook, your energy curve and where to make room for rest.
• NOW IN SPANISH
CycleSync speaks Spanish as well as English.
• STILL YOURS
Your cycle data stays on your device. Export it whenever you want.
The developer, Amit Kairon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Amit Kairon
- Size
- 81.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - iPad
Requires iPadOS 18.2 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- CycleSync Pro $59.99
- CycleSync Pro $9.99
- CycleSync Pro — Weekly $4.99
- Copyright
- © Amit Kairon