Period Cycle Tracker Lunation
AI Ovulation & Fertility Log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
AI-powered cycle predictions — up to 12 months ahead. Track periods, ovulation & fertility smarter.
Your cycle, predicted by AI — up to 12 months ahead.
Lunation uses machine learning trained on your unique patterns to forecast periods, ovulation, and fertile windows with increasing accuracy. Track 75+ symptoms, moods, and activities to unlock deeper insights into your body.
◆ AI-POWERED PREDICTIONS
Log your cycle and Lunation learns your rhythm. Get period and ovulation forecasts for up to 12 months — free for 3 months, then with Lunation Gold.
◆ OVULATION & FERTILITY
Identify your fertile window with precision. Conception Mode highlights your best days and tracks key fertility signals.
◆ PREGNANCY MODE
Switch to week-by-week pregnancy tracking with fetal development milestones, size comparisons, and personalized guidance.
◆ 75+ SYMPTOMS & ACTIVITIES
Track cramps, mood, energy, sleep, skin, cravings, and dozens more. See patterns emerge across cycles with visual analytics.
◆ SMART REMINDERS
Set custom reminders for upcoming periods, pills, or fertile days. Notifications are discreet — only you know what they mean.
◆ CYCLE ANALYTICS
Visualize trends across cycles. Understand your average cycle length, luteal phase, and how symptoms correlate with your cycle phases.
◆ AI CHAT ASSISTANT
Ask questions about your cycle, symptoms, or reproductive health and get personalized, instant guidance.
Trusted by women in 18 languages worldwide.
Download Lunation and let AI do the guessing — so you don't have to.
Privacy Policy: https://lunation.me/privacy
Terms of Use: https://lunation.me/terms
What's new in Lunation 2.8:
• New PDF report — share your cycle data with your doctor
• Improved push notification delivery
• Performance and stability improvements
Love Lunation? Leave us a review — it helps other women find us!
The developer, Holdone Software SRL, 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:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Sensitive Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Holdone Software SRL
- Size
- 94.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
English and 17 more
- English, Arabic, Bengali, Catalan, French, German, Hindi, Indonesian, Japanese, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Thai, Turkish, Urdu, Vietnamese
- Age Rating
13+
- 13+
- Infrequent
Mature or Suggestive Themes
Medical Treatment information
Sexual Content or Nudity
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Lifetime Gold $39.99
- Lunation Plus Monthly $9.99
- Lunation Plus $9.99
- Lunation Plus Yearly $49.99
- Secret Discount $19.99
- Lunation Start Yearly $49.99
- Lunation Start Yearly $49.99
- Lunation Gold Monthyl $6.99
- Lunation Gold $49.99
- Lunation Gold Weekly $2.99
- Copyright
- © Lunation SRL