Ebb Period & Cycle Tracker

Ebb is a period and cycle tracker that's honest about uncertainty. Instead of one date pretending to be certain, Ebb shows you a clear prediction window and how confident it actually is, so you can plan with the truth. WHY EBB IS DIFFERENT Honest predictions Every forecast comes with a real confidence level and the reasoning behind it, in plain language. When your cycles are regular, the window narrows. When they vary, it widens instead of lying to you. Built for real, irregular cycles Long cycles, short cycles, PCOS, or cycles that simply don't run like clockwork. Ebb shows your normal range as a band, not an error. It never shames your body for being unpredictable. Log your period, day by day One tap marks today. Ebb tracks how many days your period actually lasts and never invents days you didn't enter. It gently reminds you while you're bleeding, then stops. Your whole cycle, at a glance A calm two-month calendar shows your logged days, the day each period started, and the predicted window ahead. Insights, never a diagnosis See the patterns in your own data: cycle-length trends, period length, and which symptoms cluster in each phase. Everything is computed on your phone. Ebb offers observations, never medical claims. PRIVATE BY DEFAULT Your data lives on your phone. iCloud backup is opt-in, and Ebb never tells you it's backed up when it isn't. Apple Health sync is optional and fully in your control. No ads, no data sold, no tracking. EBB PREMIUM (optional) Upgrade for deeper analysis: symptom forecasts for your next cycle, a regularity trend, all of your symptom-by-phase patterns, and a doctor-prep report you can share with a clinician. A 7-day free trial is included; subscriptions renew automatically until cancelled, and you can cancel any time in your App Store settings. Predictions, logging, the calendar, and backup are always free. Terms of Use: https://docs.google.com/document/d/e/2PACX-1vRu6ERK8wX9vx_dPLtm66YRyLNSU9j3kTQtoGJ5GB-nO2VuN42il50YV9v_Njh3cUzJeU-6ZZYudIh1/pub Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vSWGWjnPcHXFOJFJnCyRszDYMZa_GoqnfgTAFPCsdrI371XMS7p44olhGmc7-rCcftxGUVP_zJI0I-h/pub