NerdCycle is the cycle tracker designed for two — track your period, fertility, and daily wellness, and share it with your partner. No accounts. No data collection. Everything stays on your iPhone and your private iCloud.
WHY NERDCYCLE
• Built for couples — share your cycle data with your partner so they can see what phase you're in and how to be supportive
• Privacy first — no analytics, no third-party tracking, no servers in the loop
• Beautiful pixel-perfect design with light and dark modes
• 7-day free trial. Yearly subscription or one-time lifetime purchase
CYCLE TRACKING
• Period predictions with confidence indicators
• Fertile window and ovulation forecasting
• Phase-aware insights for menstrual, follicular, ovulation, and luteal phases
• Cycle regularity score and prediction accuracy stats
• Daily tips tailored to your current phase
DAILY LOG
• Mood, flow, energy, sleep, symptoms
• Custom symptoms — add your own
• Water intake, exercise, basal body temperature (BBT)
• Cervical mucus (when you're trying to conceive)
• Quick notes for every day
PARTNER MODE
• Invite your partner with a private iCloud share — just send one link
• They see your phase, alert level, and partner-specific guidance
• Conversation tips, support kit, and "do today" suggestions tailored to her phase
• Stop sharing anytime in Settings
INSIGHTS & CHARTS
• Cycle length history and trend
• Mood and sleep correlations
• Top symptoms by phase
• Energy and sex drive patterns
• BBT chart with ovulation shift detection
• Monthly summary reports
APPLE INTEGRATIONS
• Apple Health: optional — writes period days and BBT, reads sleep, water, exercise and temperature
• Home screen widgets for quick cycle check
• Live Activity on Lock Screen and Dynamic Island
• Notifications for upcoming period, fertile window, and partner phase changes
EXPORT YOUR DATA
• CSV export for your records
• PDF doctor report for clinic visits
• Delete everything anytime in Settings
PRICING
NerdCycle is free to download with a 7-day free trial. After the trial, choose one of two options:
• Yearly Subscription — $9.99 per year, auto-renewable
• Lifetime — $29.99 one-time purchase
Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage or cancel in iOS Settings → Apple ID → Subscriptions.
Privacy Policy: https://vladoivankovic.com/NerdCycle/privacy.php
Terms of Use: https://vladoivankovic.com/NerdCycle/terms.php
NerdCycle is not a medical device. Predictions are estimates — always consult a healthcare professional for medical decisions.
Show more
