DuoSync Period Tracker for Men
Cycle Tracking for Partners
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
DuoSync is the period tracker built for men who want to be better partners.
Stay in sync with her cycle.
DuoSync helps boyfriends and husbands track their partner’s period, PMS, and ovulation. Understand her cycle, anticipate important days, and support her in meaningful ways.
Understand Her Cycle at a Glance
No more guessing.
See exactly where she is in her cycle with a simple, clear timeline.
• Know when her period is due
• See when PMS is approaching
• Track ovulation windows
• Understand mood and energy shifts
When you understand her cycle, you communicate better, plan better, and support better.
Smart Period & PMS Reminders
Never get caught off guard again.
DuoSync sends discreet reminders before:
• Her period starts
• PMS begins
• Ovulation approaches
Be prepared. Be thoughtful. Be the partner who gets it.
Daily Partner Suggestions
Get simple, actionable ideas every day:
• Thoughtful gestures
• Conversation starters
• Quick connection tips
• Support suggestions based on her cycle phase
Small actions create stronger relationships.
Never Miss Important Dates
DuoSync is your relationship reminder system.
• Anniversary reminders
• Birthday reminders
• Custom important dates
• Personal events you never want to forget
Everything in one place.
Privacy First. Always.
Your relationship is private, your data should be too.
• No accounts required
• No data collection
• No cloud storage
• Everything stored locally on your device
You stay in control. Always.
Built Specifically for Men
Most period apps are made for women.
DuoSync is designed for men who want to:
• Understand their partner’s cycle
• Improve communication
• Reduce relationship stress
• Be more supportive
• Strengthen emotional connection
Cycle tracking for partners made simple.
Features
• Period tracker for men
• Full cycle tracking timeline
• PMS reminders
• Ovulation reminders
• Period start notifications
• Daily partner suggestions
• Anniversary & birthday reminders
• Custom date tracking
• Private & secure - no sign-up required
Why DuoSync?
Because remembering matters.
Because preparation shows care.
Because understanding builds stronger relationships.
Download DuoSync today and stay in sync with the one who matters most.
Period tracker for men • Cycle tracker for partners • Relationship app for couples
Terms of Use: https://duosync.io/duosync-terms-and-conditions/
Privacy Policy: https://duosync.io/privacy-policy/
Added support tab to settings. Updated post on-boarding mechanics in app. Haptics were added during on-boarding and in app. The app now also allows initial input of period start date if skipped in on-boarding. Updated on-boarding flow.
The developer, Ryan Molkentin, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryan Molkentin
- Size
- 37.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Infrequent
Mature or Suggestive Themes
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- DuoSync Yearly $29.99
- DuoSync Monthly $9.99
- Copyright
- © 2026 Ryan Molkentin