Ailyn: Cycle-Syncing
Live in Sync With Your Cycle
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Women's body is not the same every week. Ailyn is built around that.
Ailyn reads where you are in your menstrual cycle and shapes the whole day around it, the food that suits this week, the training your body can take, the rest it is asking for. One companion that changes with you, instead of one plan repeated every day.
EVERYTHING STAYS ON YOUR IPHONE
Ailyn runs on Apple's on-device intelligence. Your cycle, your journal, your moods. none of it is uploaded. There is no account to create and no server to send it to. Nothing leaves your device.
TODAY
Your cycle day and phase at a glance, with guidance written for the day you are actually having. Tap the ring to correct your dates any time, bodies do not read calendars.
NOURISH
Food matched to your phase. Iron while you are bleeding, steady energy through your follicular week, magnesium and slow carbohydrates when your luteal phase asks for them.
MOVE
Training that pushes when your body can and rests when it should. Strength through your follicular and ovulatory weeks, gentler movement when you need it.
REFLECT
Journal, breathe, and keep what you are grateful for. Write by hand or speak it , dictation runs on your iPhone. A wind-down flow for the end of the day.
APPLE HEALTH
Connect Apple Health and Ailyn starts from the cycle you have already logged, then keeps your dates accurate as they change. Sleep, steps, workouts, resting heart rate and HRV all feed the picture. It is optional, you can enter your dates by hand instead.
SIRI
"get today's insight from Ailyn ", Journal in Ailyn." "Log my period in Ailyn." "Start breathing in Ailyn."
BUILT FOR A NATURAL CYCLE
Ailyn predicts your phases from your period dates, which holds when your own hormones are running your cycle. On hormonal birth control, during pregnancy, or after menopause your phases will not line up — Ailyn tells you so plainly, and the journal, breathing, gratitude and reflections all still work.
Ailyn is a wellness companion, not a medical device. It does not diagnose, treat or prevent any condition, and it is not contraception. Please talk to a clinician about your health.
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Ready for iOS 27
Ailyn is now built for iOS 27 and runs smoothly on the latest iPhones.
The developer, Ankita Satpathy, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ankita Satpathy
- Size
- 23.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 Ankita Satpathy