Period calendar
Your cycle, clear and private.
Log your period with one tap and we'll tell you when the next one is due, which days you're fertile and when you ovulate.
Free forever. No account, no ads, and your data stays on your phone.
Everything you need, free
Period predictions
Learns from your cycles and shows when your next period is due, with an honest range.
Fertile days and ovulation
Your fertile window and estimated ovulation day, right on your calendar.
Discreet reminders
Reminders before your period, your fertile days and your pill, without ever saying "period" on screen.
Daily log in seconds
Flow, symptoms, mood, pain, discharge, sex, temperature and notes.
For every stage
Cycle tracking, trying to conceive, avoiding pregnancy, pregnancy, postpartum, perimenopause and PCOS. Or Simple Mode: just your period.
Backup
Back up to your own iCloud or your Android backup, and export your data whenever you like.
Your data is yours
There's no account to create. Your history stays on your phone and is never uploaded to our servers. Lock it with Face ID or a PIN.
Read our privacy policy →Premium, if you want more
Themes and backgrounds for your calendar, symptom and mood patterns by phase, a basal temperature chart and a PDF report for your gynecologist. Monthly, yearly with 7 days free, or lifetime.