Cycle overview✦
YOUR CYCLE
—
Add your last period start date to begin.
Cycle day —Next period: —
YOUR PERSONAL CYCLE SPACE
Know your rhythm.
Small notes today. Better patterns over time.
QUICK LOG
How are you today?
A GENTLE INSIGHT
Your patterns will appear here as you log more cycles. Estimates become more useful with consistent records.
LunaCycle is a tracking and education tool, not a diagnosis or a contraceptive method.
YOUR HISTORY
Cycle calendar
Select a day to view or add a record.
Month Year
MonTueWedThuFriSatSun
Period loggedEstimated periodEstimated fertile window
SELECTED DAY
Today
No entry yet.
RECENT CYCLES
History
DAILY CHECK-IN
Log your day
Your entries stay on this device.
PATTERNS, NOT DIAGNOSES
Cycle insights
Your history, explained with care.
RECENT PATTERN
Cycle lengths
BODY & MOOD
Symptom patterns
These summaries show co-occurrence in your records, not proof that cycle phase caused a symptom.
Record symptoms over time to see recurring patterns.
PERSONALIZED
Health notes
ESTIMATES ONLY
Fertility window
Add period start dates to see a broad calendar estimate.
Ovulation timing can vary even in regular cycles. Do not use these dates to avoid pregnancy or to confirm pregnancy/ovulation.
Your report is generated in your browser. Choose “Save as PDF” in the print dialog.
YOUR SPACE
Settings
Control your data and experience.
Typical cycle lengthUsed as a starting estimate if history is limited.
Typical period lengthYour usual bleeding duration.
ThemeChoose your preferred appearance.
Fertility estimatesHide the fertile-window estimates entirely.
PRIVACY & BACKUP
Your records stay here
This version stores entries in this browser on this device. Clearing browser data, uninstalling, or changing devices may erase them. Export a backup regularly.
OPTIONAL CLOUD SYNC
Encrypted online backup
Syncs only while you're online. Data is encrypted on this device with your passphrase before upload, so the server can't read it, and a lost passphrase can't be recovered. Use a long passphrase (4+ random words). "Delete all my data" only clears this device.
HEALTH & SAFETY
When to seek help
Consider speaking with a qualified clinician about persistent cycle changes, bleeding between periods, or pain that disrupts daily life. Seek urgent care for very heavy bleeding with faintness, severe sudden pelvic pain, or possible pregnancy with pain or bleeding.
Cycle guidance is educational and is not a substitute for medical advice.
ABOUT
LunaCycle
Version 1.0 · Private cycle tracking for everyday wellbeing.