Your cycle,
beautifully understood.
Cyca turns your cycle into clarity. Log your period in a tap, see a gentle Daily Body Forecast for how today may feel, and look ahead to your next period, fertile window, and ovulation on a soft, beautiful calendar. Everything is predicted and stored entirely on your iPhone — private by design.
What Cyca does
A private, caring companion for every phase of your cycle.
Daily Body Forecast
A warm daily reading of your energy, mood, skin, and cramps — so you know what today may bring and can plan with kindness.
Smart predictions
Cyca learns your rhythm to predict your next period, fertile window, and ovulation, and adapts as you log.
Beautiful calendar
See your whole cycle at a glance — period days, fertile window, and ovulation in soft, clear color.
Symptoms & moods
Log flow, symptoms, moods, and notes in seconds, and watch your personal patterns appear over time.
Personal Rhythm & insights
Discover how your body tends to move through each phase, with gentle, personalized insights.
Care Plan & gentle heads-up
Get caring, phase-aware suggestions and a kind reminder before your period or PMS — never clinical, always supportive.
Private by design
Your cycle is yours. Privacy isn't a setting here — it's the whole architecture.
Everything happens on your device. There is no account, no ads, no tracking, and no cloud. Your cycle data, symptoms, and notes never leave your iPhone, and the app works exactly the same in airplane mode. Cyca has no servers and never sends your health information to us or to any third party. See our full Privacy Policy.
Support & FAQ
Need help? We're happy to assist.
How do I track my period?
Tap to log the day your period starts and how your flow feels. Cyca instantly updates your calendar and predictions for your next period, fertile window, and ovulation.
How accurate are the predictions?
Cyca predicts using the cycle history you log, so accuracy improves as you track more cycles. Predictions are estimates for planning and wellness, and cycles can naturally vary. Cyca is not a contraceptive and does not provide medical advice.
What is the Daily Body Forecast?
It's a gentle daily reading — based on where you are in your cycle — of how your energy, mood, skin, and comfort may feel, with caring suggestions for the day. It's supportive guidance, not a diagnosis.
Is my data really private?
Yes. Everything is stored on your device. Cyca has no account and no cloud, includes no ads or third-party tracking, and works fully offline.
Which languages are supported?
Cyca is fully localized in English, Traditional Chinese, Japanese, Korean, German, French, Spanish, and Italian.
How do free and Pro work?
Cyca is free to track today and your period. A one-time lifetime Pro unlock adds future predictions, Personal Rhythm insights, the Smart Planner, full calendar history, and deeper personalization — paid once, yours forever, with no subscription.
How do I delete my data?
Everything is stored on your device. You can clear entries in the app, or delete the app to remove locally stored data, subject to normal iOS behavior and any device backups you control.
Contact us at alice51849@hotmail.com. We typically reply within 1–2 business days.