PCOS touches your hormones, insulin, cycle and skin all at once — so Cystra tracks all of it. Symptoms, irregular cycles, labs and meds in one place, with an AI coach that shows its work.
Free to use — no trial, no paywall before you've tried it.
Track what actually matters
Everything below is free — because tracking your own body shouldn't be behind a paywall.
Acne, hair, mood, energy, sleep, cravings, bloating, pain — 30-second check-ins that build a real picture.
Predictions built for PCOS: a realistic range instead of false precision that never fits.
Testosterone, fasting insulin, HbA1c, AMH and more — see trends across months, not one printout.
Metformin, inositol, spironolactone — schedules, reminders, and adherence you can show your doctor.
Privacy isn't a feature. It's the architecture.
Cystra stores your health data on your device. There's no account to create, no cloud profile of your body, nothing to breach or sell.
Cystra Premium
Ask about your cycle, prep for a doctor's visit, log conversationally. Every answer is grounded in your own data and cites its sources — and it will never play doctor with dosing or diagnosis.
Premium also unlocks insulin-resistance-aware recipes and meal plans, illustrated workouts, and pattern reports you can hand to your endocrinologist as a PDF.
Honest pricing