We believe understanding your body changes everything

We're creating a world where healthcare is preventative, not reactive — where everyone has the intelligence to understand their body before symptoms become crises.

Batuhan T. & Şeyma D.

Co-founders of Cyra

Every woman deserves continuous hormone intelligence. Not a once-a-year blood panel. Not a strip she has to pee on at 6 am.

Hormone health has been managed the same way for fifty years. Blood draws. Urine sticks. Symptom logs written after the fact. Women have been told to track their cycles without ever being given the tools to actually understand them. Cyra exists because that gap is unacceptable, and because the technology to close it finally exists.

Our signal of progress is the woman who finally walks into a doctor's office with longitudinal hormone data and says: 'Here is what my body has been doing for the last three months.' The one who spent years being told her symptoms were normal, and can now show they weren't.

Your hormone data never leaves your device. Every model runs locally, every insight is generated on your phone. We built Cyra this way on purpose. The most intimate data a person can generate should never be stored on a server we control, let alone sold to one we don't.

Cyra is not an app. It is not a tracker. It is a lifestyle operating system that connects your hormones, your sleep, your energy, your cycle, and your goals into a single, continuous picture of your health. We don't give you data points. We give you clarity.

This is just the beginning of what an OS built around women's biology can do.

Batuhan and Şeyma

Our Values

The principles behind Cyra

An OS is only as good as the values it runs on.

OS, Not an App

Cyra connects hormones, sleep, energy, cycle phases, and personal goals into one continuous layer of intelligence. Not a dashboard you check. A system that works with you.

Preventative by Design

Cyra surfaces patterns before they become problems. The goal isn't to log what happened. It's to understand what's coming and act before symptoms speak first.

Private by Architecture

Every model runs on your phone. Your hormone data never touches our servers. Privacy isn't a policy. It's baked into how we built the system.

Evidence You Can Advocate With

Every insight Cyra generates is built to hold up in a clinical setting. Women shouldn't have to fight to be taken seriously. They should walk in with the data to prove it.

Our Mission

To build the operating system women's health has always needed. One that turns the body's continuous signals into clarity, agency, and the kind of evidence that finally gets taken seriously.

Expert team behind Cyra

The Cyra team brings together experience from institutions shaping the future of health, technology, and human biology.