Your cycle has a story. Cyra reads it.

Cyra is a cycle intelligence platform for women. It tracks your cycle phases, predicts your period and fertile window, and connects your biology to daily life through an app on iOS and Android. Cyra translates your cycle data into personalized daily guidance for nutrition, fitness, sleep, reproductive health, and long-term wellbeing.

Your cycle leaves traces everywhere — in your body temperature, heart rate, sleep, energy, and mood. Cyra's models, trained on real-world biological data, connect these signals to give you a continuous, personalized picture of where you are in your cycle and what your body needs next.

Oura, Whoop, and Apple Watch are fitness and recovery platforms built for a generic user. Their algorithms treat the natural variations of a woman's cycle as noise to be filtered out. A woman's HRV dropping in her luteal phase is not a recovery problem — it is her body doing exactly what it should. Cyra is the first platform built from the ground up to understand women's biology, not suppress it.

At launch Cyra tracks your cycle phases, period predictions, fertile window, energy, sleep quality, and daily wellbeing — all connected to where you are in your cycle. Our roadmap includes deeper biomarker integration as the platform grows.

Cyra's predictions improve with every cycle as it learns your unique biology. Our models are trained on clinical-grade data and validated against real-world cycle outcomes. We publish accuracy data as our validation trials conclude.