Understand Your Cycle, Own Your Health
Science-backed period tracking with AI predictions, cycle phase insights, and complete data privacy. Your body's patterns, decoded.
Trusted by 50,000+ women worldwide
50K+
Active users
4.8
App Store rating
97%
Prediction accuracy
Everything You Need to
Understand Your Cycle
Five powerful features designed to give you clarity, confidence, and control over your menstrual health.
AI-Powered Predictions
Our machine learning models analyze your unique patterns to predict periods, fertile windows, and cycle phases with industry-leading accuracy.
Cycle Phase Insights
Understand how each phase affects your energy, mood, skin, and more. Get personalized recommendations tailored to where you are in your cycle.
Effortless Symptom Logging
Track 50+ symptoms with quick-tap logging. Cyla learns which symptoms matter most to you and surfaces relevant correlations.
Privacy-First Design
Your data stays on your device with optional encrypted backup. No ads, no data selling — ever. You're the customer, not the product.
Health Report Generation
Generate shareable PDF reports for your healthcare provider. Bridge the gap between daily tracking and clinical conversations.
Why Women Trust Cyla
Built on science, designed for real life
Accurate Predictions
Our AI learns your unique patterns over time, delivering predictions that get smarter with every cycle you track.
97%
Prediction accuracy after 3 cycles
Complete Privacy
End-to-end encryption, on-device processing, and zero data selling. Your health data belongs to you — period.
Zero
Third-party data sharing — ever
Expert-Backed Science
Developed with OB-GYNs and reproductive health researchers. Every feature is grounded in peer-reviewed science.
12+
Medical advisors on our team
Your Cycle, Phase by Phase
Understand what's happening in your body throughout your entire cycle
Rest & Renewal
Your body is shedding the uterine lining. Energy and hormone levels are at their lowest. This is your time to rest, reflect, and honor what your body needs.
Tips:
Gentle yoga, warm foods, iron-rich meals, extra sleep
Rest & Renewal
Your body is shedding the uterine lining. Energy and hormone levels are at their lowest. This is your time to rest, reflect, and honor what your body needs.
Tips:
Gentle yoga, warm foods, iron-rich meals, extra sleep
Rising Energy
Estrogen begins to rise, boosting your mood, creativity, and energy. Your body is preparing for ovulation — it's a great time to start new projects.
Tips:
Try new workouts, brainstorm, social activities, fermented foods
Peak Vitality
Estrogen and LH surge, and you're at your most energetic and confident. Communication skills peak — ideal for presentations and important conversations.
Tips:
High-intensity exercise, important meetings, date nights, raw vegetables
Wind Down
Progesterone rises then falls. You may feel more introspective and detail-oriented early on, with PMS symptoms possible in the final days.
Tips:
Strength training, organizing, comfort foods, magnesium-rich foods
See your personal phase insights
Loved by Women Everywhere
Real stories from the Cyla community
“Cyla predicted my period down to the exact day after just 3 cycles. No other app has been this accurate for my irregular cycle.”
Sarah M.
Using Cyla for 8 months
“The cycle phase insights changed how I plan my week. I schedule big meetings during ovulation and creative work during follicular. Game changer.”
Priya K.
Using Cyla for 1 year
“Finally an app that doesn't sell my data. I showed my doctor the health report and she was genuinely impressed by the detail.”
Emma L.
Using Cyla for 6 months
“As someone with PCOS, having an app that adapts to irregular cycles instead of assuming a 28-day cycle is a breath of fresh air.”
Ana R.
Using Cyla for 10 months
“Cyla predicted my period down to the exact day after just 3 cycles. No other app has been this accurate for my irregular cycle.”
Sarah M.
Using Cyla for 8 months
“The cycle phase insights changed how I plan my week. I schedule big meetings during ovulation and creative work during follicular. Game changer.”
Priya K.
Using Cyla for 1 year
“Finally an app that doesn't sell my data. I showed my doctor the health report and she was genuinely impressed by the detail.”
Emma L.
Using Cyla for 6 months
“As someone with PCOS, having an app that adapts to irregular cycles instead of assuming a 28-day cycle is a breath of fresh air.”
Ana R.
Using Cyla for 10 months
Free Health Tools
Useful calculators and resources — no download required
From the Cyla Blog
Evidence-based articles on menstrual health and wellness
Start Understanding Your Cycle Today
Join 50,000+ women who've taken control of their health with Cyla. Free to download, free to use.