Ondelle: Cycle Tracker

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/