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Phase

A quiet way to track your cycle.
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Log a period to begin
Period Fertile Near Safer Today
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Next period
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Avg cycle (last 6)
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Calendar

Period Predicted Possible Fertile Near Safer
Solid outline is the most likely period window; the lighter outline covers the uncertainty around it. Fertile and safer shading projects your average cycle forward, so accuracy drops the further out you look. A small gold dot marks days with symptoms logged.

History

Cycle lengths

Patterns

Reminders

Tracking

Appearance

Privacy

Data

Export a copy of your periods and symptom logs, or bring data in from a previous export.

Account

“Sign out” ends Phase on this device. Your Slipway sign-in may remember you, so signing straight back in can be instant; “all apps” ends that too. Manage account

About

Symptoms & mood

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Sign in to Phase

Log a period

Log symptoms & mood