know the rhythm.
show up better.
Marcy turns cycle timing into practical context—so you can notice patterns, communicate with care, and be a steadier partner. No account. No ads. Data stays on your device.
private by design
Cycle records stay on the device. Marcy has no account system, analytics, ads, or cloud database.
context, not certainty
Predictions are estimates. Marcy helps you pay attention without reducing a person to a calendar.
care in practice
Clear, grounded suggestions help turn awareness into respectful communication and useful support.
A small tool for paying better attention.
Cycles can shape timing, energy, and comfort, but they never explain a whole person. Marcy gives partners a private place to remember dates, see patterns, and approach conversations with more context.
Marcy is made by Marcy Labs LLC. The iPhone app is in development; the browser prototype is available now.