Creighton Cycle TrackerA free Creighton Model (CrMS) fertility cycle tracking app. Track daily observations, chart mucus patterns, identify peak days, and share your chart with your FertilityCare Practitioner.Features

Daily fertility observation tracking — bleeding, mucus stretch, mucus characteristics, frequency

Auto-computed CrMS stamps — green (dry/infertile), red (bleeding), white (fertile/mucus), yellow (Basic Infertile Pattern)

Classic Creighton 35-column chart with cycle rows, stamps, and observation codes

Calendar view with mini stamps and cycle boundaries

Automatic cycle detection and peak day identification

Provider sharing with read-only chart links

Works offline as a Progressive Web App

Cross-device sync with encrypted backup

Data export in JSON and CSV formats

Learn more about the Creighton Model at FertilityCare.org and Saint Paul VI Institute.