NerdCycle: Period Tracker

The cycle tracker built for two — she tracks, he stays in sync. Your data never leaves your own iCloud. No account, no ads, no trackers.

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 read/write for menstrual flow and BBT • Home screen widgets for quick cycle check • Apple Watch complications • 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.