RYTEX: Period & Cycle Tracker
Cycle, Ovulation & Partner
Only for iPhone
Free · In‑App Purchases
iPhone
Know Your Rhythm.
RYTEX is a private, ad-free period and cycle tracker.
Your health data lives on your device — always.
TRACK YOUR CYCLE
• Period & ovulation predictions
• Symptom tracking (mood, cramps, energy, sleep and more)
• Daily & monthly cycle insights
• Irregular cycle support
PLAN AHEAD
See your predicted period dates for the next 3 and 6 months.
Plan your vacation, your important days, your life —
without surprises.
PARTNER SHARING
• Share your cycle privately with your partner
• Sharing starts only with your invitation and their explicit acceptance
• End-to-end encrypted — no one can read it, not even us
• You control what they see, and you can stop sharing anytime
TRULY PRIVATE
• Your health data stays on your device
• Anything you share is end-to-end encrypted
• No ads. Ever.
• No data selling. Ever.
• No account required to start
HEALTH INSIGHTS
• Science-based cycle analysis
• PMS & ovulation pattern detection
• Doctor report export (PDF)
SPARK
Something your partner can send you.
Something you can send back.
Only visible when you open the app.
No notification. No trace.
Some things don't need words.
DISCREET BY DESIGN
All notifications are private.
No period dates. No symptom details. No cycle info.
Just a gentle nudge — nothing more.
Your health is yours alone.
Apple Health: RYTEX can import your past Menstrual Flow records from the Health app (read-only) so you keep your history when switching from another period tracker. Settings → Data Transfer → Import from Health.
—
MEDICAL DISCLAIMER
RYTEX is not a medical device and does not provide medical advice, diagnosis, or treatment. It is not a diagnostic tool and must not be used as contraception. Predictions and insights are for informational purposes only. Always seek the advice of a qualified healthcare professional in addition to using this app, and before making any medical decisions or changing your treatment.
Terms of Use (EULA): https://rytex.app/terms
Privacy Policy: https://rytex.app/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• The partner invite screen now fits on one page: the send button is always visible and there's a clear button to close it.
• Role selection is visible at a glance.
• Fixed labels that were cut off on small screens.
The developer, Omer Dulger, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Omer Dulger
- Size
- 54.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Mature or Suggestive Themes
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Premium Monthly $4.99
- Premium Yearly $34.99
- Copyright
- © 2026 Omer Dulger