Crescent Cycle

Cycle tracking for couples · iPhone and Android

What it is

Most cycle trackers are built for one person. Crescent Cycle is built for two: one partner tracks her cycle, and the other can follow along with exactly as much access as she decides to give — and no more.

Log flow, mood, energy, symptoms, medications and notes
Predictions that say how confident they are, and say nothing at all when there isn't enough history to be useful
A supporting partner view, with permissions she sets and can revoke
Home screen widget, reminders, and an export of everything you've logged

Crescent Cycle is a tracking app. Its predictions are estimates from logged cycles — not medical advice, and not a form of birth control.

Get the app

Get it on Google Play

The iPhone version is on the way.

Subscription plans, pricing and answers to common questions are on the support page.

Your data

What you log is health information, and it is treated that way. Entries are encrypted on your device and in transit, a supporting partner sees only what you share with him, and you can export or delete everything at any time.

Help

Questions, problems, or something that looks wrong — email brian@iamgeek.com and a person will reply. The support page covers the usual questions first.