A calm period tracker
Log your period and how you feel. Olma shows when to expect your next period and your fertile window.
What Olma does
Forecasts
Period, ovulation and fertile window, based on your own cycles. If your cycles vary, you see a range of dates.
Late period
Olma tells you how many days late your period is and suggests taking a test.
Daily log
Flow, symptoms, mood, discharge, sex, tests, temperature, weight and notes.
Insights
Average cycle and period length, regularity, a chart of recent cycles and common symptoms by phase.
Gentle reminders
Before your period, at the start of the fertile window, and in the evening if you haven’t logged the day. The lock screen shows only neutral text.
Nine styles
Each with three themes, including dark ones. PIN or fingerprint lock. A pregnancy mode that pauses forecasts.
Your data is yours
- Works without an account. Everything is stored on your phone and included in its own backup.
- Optional sync between devices with email sign-in. The copy is kept on a server in the Netherlands (EU) and used only for you.
- No ads based on health data. We never sell or share your data.
- “Delete all data” erases everything with one tap.
Olma does not diagnose and does not replace a doctor. Forecasts are not a method of contraception.