Ovuly: Ovulation Cycle Tracker

Your cycle, predicted by your body.

Most period trackers guess your next period from calendar averages. Ovuly pulls wrist temperature shifts, heart rate variability, resting heart rate, and sleep data from Apple Health. Predictions sharpen with every cycle you track.

WHAT MAKES OVULY DIFFERENT

Biometric-Powered Predictions Ovuly detects your temperature's biphasic shift and HRV changes to pinpoint ovulation and adjust your predicted period date. The more you wear your Apple Watch, the sharper the predictions get.

Your Data, fully secured by Apple No account. No Ovuly servers. Your cycle data is stored in your own iCloud account and syncs across your devices with end-to-end encryption. Ovuly reads biometric data from Apple Health to power smarter predictions. We will never sell your data — we don't even have access to it.

Clean, Focused Design Log your flow, symptoms, and mood in seconds. No social feeds. No 100-category checklists. You get a clear dashboard, a calendar, and insights that matter.

OVULY PLUS

Stop guessing and start planning — Ovuly Plus helps you understand your body so you can work with your cycle, not against it.

• Know exactly where you are in your cycle — one glance at your dashboard tells you your day and phase
• Stop being caught off guard — get accurate period, fertile window, and ovulation predictions that improve with every cycle
• Log how you feel in seconds, not minutes — track flow, spotting, symptoms, mood, and notes without endless checklists
• Understand your patterns — see why you felt tired or why your mood dipped, backed by your own cycle data
• Plan ahead with confidence — a color-coded calendar shows upcoming periods and fertile windows at a glance
• See the bigger picture — track how your cycle lengths change over time so you notice shifts early
• Work with your body, not against it — see how your heart rate, temperature, HRV, and sleep shift across each phase so you can plan workouts, rest days, and big days accordingly
• Let your Apple Watch do the work — your wrist temperature, HRV, heart rate, and sleep data feed smarter predictions automatically
• Never be surprised again — get a heads-up before your period and fertile window so you're always prepared
• Look 12 months ahead — see your predicted cycles for the full year so vacations, events, and plans aren't a guessing game

BUILT FOR PRIVACY

No account, no email, no Ovuly server. Your cycle data lives in your own iCloud account with end-to-end encryption — only you can read it. Ovuly reads biometric data from Apple Health to power predictions, and can write menstruation and spotting data back (export feature). Both iCloud sync and Apple Health are optional. Your data belong to you, not to us. We will never sell your data.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ovuly.app/privacy