Phasa: Private Period Tracker

Phasa is a private period tracker, ovulation calendar and perimenopause app that keeps every entry on your iPhone and tells you the truth about your cycle, even when it's irregular. Track periods, PCOS, hot flashes, basal body temperature (BBT), cervical mucus and symptoms, use the pregnancy due date calculator, and share a clean PDF with your doctor. No account. No server. No ads. Just honest predictions that learn from you. PREDICTIONS YOU CAN TRUST • Your next period shown as a window of likely days, with a confidence level • Learns your own pattern over time, built for irregular cycles, PCOS and perimenopause • Fertile window and ovulation estimate for every cycle • Log basal body temperature and Phasa confirms ovulation from the temperature rise LOG IN SECONDS • Flow, mood, energy, sleep, cervical mucus, notes and photos • 23 built-in symptoms, from cramps to headaches, plus your own with Phasa Plus • A calendar that shows logged, predicted and fertile days at a glance INSIGHTS WITH EVIDENCE Phasa finds patterns in your own logs, such as symptoms that cluster before your period, and shows how many cycles each one is based on. FOUR MODES Period tracking, trying to conceive, pregnancy (week count, trimester and due date) and perimenopause. PRIVATE BY DESIGN • No account or sign-up • Your data stays on your iPhone. Phasa has no server, no analytics and no ad code • Face ID lock and discreet reminders • Export everything, or delete everything permanently, in one tap • A Privacy Dashboard shows exactly what Phasa stores MADE FOR iPHONE Apple Health sync, Home Screen and Lock Screen widgets, a Live Activity during your period, and a PDF report to share with your doctor. FREE AND PHASA PLUS Logging, the calendar, predictions, Apple Health, export and delete are free. Phasa Plus adds deeper insights, your full charted history, PDF reports, partner sharing and custom symptoms. Phasa Plus: weekly ($3.99, 3-day free trial for eligible new subscribers), monthly ($9.99) or yearly ($29.99), or your local equivalent. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage them in your Apple Account settings. Terms of Use: https://phasa-app.web.app/terms.html Privacy Policy: https://phasa-app.web.app/privacy.html Phasa is not a medical device and not a contraceptive. Predictions are estimates. Talk to a clinician about any health concern. Start tracking privately today.