Period Tracker vs Ondelle

Whether you're tracking your period, trying to conceive (TTC), managing PCOS or endometriosis, or simply wanting to understand your body better — this app gives you the tools to take charge of your cycle, privately and securely. ⌘ PRIVATE BY DESIGN Your health data is deeply personal. Period Tracker includes a password-locked calendar so your cycle history, symptoms, and logs stay completely private. No account required. No data sold to advertisers. ⌘ WHAT YOU CAN TRACK Menstrual flow and cycle length Ovulation day and fertile window Cervical mucus and basal body temperature (BBT) Mood, energy, PMS symptoms Weight, BMI, and sexual activity Birth control and pill reminders ⌘ BUILT FOR REAL CYCLES Irregular cycles? No problem. Whether you have PCOS, endometriosis, or simply unpredictable periods, Period Tracker adapts its predictions to your unique cycle history — not a textbook average. ⌘ TRYING TO CONCEIVE? Pinpoint your fertile days, track your luteal phase and follicular phase, and get daily pregnancy chance insights. Designed for women on a TTC journey who want data, not guesswork. ⌘ SMART REMINDERS Set personalized reminders for your next period, PMS, ovulation, and birth control. Get alerts when your cycle changes unexpectedly.

Meet Ondelle, a private period calendar designed to help you keep your history close. START FREE • Log when a period starts and ends, and record symptoms • See your logged dates and estimated fertile days on a clear calendar after two period starts • Take an optional illustrated tour and choose a profile illustration • Use privacy controls, app lock, manual full-data export and restore, and data erasure without a purchase EXPLORE ONDELLE PREMIUM • Read a Cycle Brief with dated observations from your own entries • Record mood, flow, temperature, cervical mucus, and ovulation-test results • Review cycle patterns and Insights • Follow pregnancy weeks with general guidance, check-ins, reminders, and a private journal • Create a personal report for appointments • Save protected recovery snapshots on this device with Memory Vault • Record a birth-control method and personal dates; set a one-time reminder for the next change, injection, check, or replacement date you enter Choose a monthly or annual subscription, or a lifetime purchase. Prices and any eligible introductory offer appear in the App Store purchase sheet. Restore Purchases is available in the app. Existing Ondelle 1.0 profiles keep access to the features previously available to them. Your health entries stay on your device unless you choose to export them. No email, phone number, or cloud account is required. Apple and RevenueCat process purchase information to verify Premium access. Ondelle is a wellness and education tool. Predictions are estimates and do not confirm ovulation; they are not contraception, medical advice, or diagnosis. Consult a qualified healthcare professional for medical questions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/