We’re currently in private testing. Join the waitlist

Period & cycle tracking

Your cycle,
quietly kept.

A calm, continuous calendar for logging periods, symptoms, moods, and notes, without turning your body into a score.

  • No account required for the app
  • Cycle data protected on your device
  • Designed for iOS & Android
CYCLE DAY 16 · JUL 21 Good morning
Next period estimate 3 August Predictions are estimates, not medical advice.

Built around the day

Useful at a glance. Detailed when you need it.

Log as much or as little as feels useful. Every daily field is optional.

A continuous calendar

Move through past and upcoming months in one timeline. See logged flow, predicted periods, and estimated fertile days together.

Flexible daily logging

Record flow, symptoms, moods, notes, and sexual activity from any day. Your entries can stay as simple as a single tap.

Made to feel like yours

Choose a warm or pink palette, use light or dark mode, set your week start, and use the app in any of 26 supported languages.

Optional reminders Samsung Health history import Back up and restore your data

Privacy by default

Your cycle history stays under your control.

In the current app, your cycle and wellness entries are protected and kept on your device. They are left out of regular Android and iCloud backups and are not sent to us.

  • No ads or tools that track how you use the app
  • Export and restore when you choose
  • Delete all app data from Settings

Exported backups are not password-protected. They leave the app only when you choose where to save or share them. Support messages go through our support service. Private cloud sync is in the works. It will be optional and turned off unless you choose to use it. Read the full Privacy Notice.

CURRENT APP

Cycle data kept securelyOn your device
Automatic phone backupsKept out
Ads & activity trackingNone
Private cloud syncIn the works

These statements describe the current app build, not the website waitlist.

Release updates

Be there when the calendar opens.

Leave your email and we’ll let you know when My Red Cousin is ready to try.

We keep your email private and use it only for these updates. We do not sell it.