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Cleaner bottom layout: the tab bar now sits right below your content.
Simple, private period tracker. 3-second logging, accurate cycle predictions.
Petal is a simple period calendar that keeps your cycle organized and your data private. Log your period in 3 seconds, see your next period, ovulation and fertile window at a glance — no account, no cloud, everything stays on your phone. Why Petal? 🌸 Simple period tracker — open, tap, done. No clutter, no mandatory questions. 🔒 Truly private — no sign-up, no server. Your period data never leaves your device. Deleting the app deletes everything. 📅 Accurate cycle predictions — Petal weighs your recent cycles, so when your cycle shifts, the forecast shifts with it. 🥚 Ovulation & fertile window — see your ovulation day and fertile days on the calendar, with a clear pregnancy-chance status every day. 📱 Home screen widget — days until your next period, right on your home screen. Track what matters • Period start & end with one tap • Flow level, symptoms (cramps, headache, bloating and more), mood and notes • Intimacy and contraceptive pill intake • Cycle history with average cycle length, period length and regularity Made for your goal Choose your mode — track your cycle, try to conceive, or avoid pregnancy — and Petal adapts what it shows you. Planning a baby? See your best fertile days. Avoiding pregnancy? Get clear caution on risky days, plus honest information about birth control reliability. Gentle reminders • Period coming up — a discreet heads-up 2 days before • Ovulation and fertile window reminders • Daily contraceptive pill reminder at your chosen time • Notifications use neutral wording, so nothing personal shows on your lock screen Insights that help • Cycle history chart — spot changes in your menstrual cycle over time • PMS and ovulation pain explained — know what your body is doing and when to see a doctor • Care tips for cramps, fatigue, and other period symptoms Your data, your control Petal works fully offline. Export your data to a file anytime for your own backup, and import it on a new phone. No account to create, no password to forget, nothing stored on our servers — because there are none. Whether you need a period tracker, an ovulation calculator, a fertility calendar or just a simple menstrual cycle diary — Petal keeps it simple, accurate and private.