- Use the Period Calculator at the bottom of this page; it doesn’t store any data.
- Store your predicted period dates in a secured note (like Apple Notes with password + Cloud encryption enabled) or mark your calendar with a code name like “Relax Days”/”Deep Clean”
Period Calculator
Calculate when your next periods might start.
Everything is done locally. NO DATA IS STORED.
What do these mean?
- + Cycle length: The average number of days from the start of one period to the start of the next.
- + Period days: The typical duration of your period in days.