Fertility & Cycle AI

Your cycle, your insights — on your device, never on a server.

Your cycle, your insights — on your device, never on a server.

Fertility & Cycle AI is a privacy-first cycle, fertility, and hormone tracking app with predictions that learn from the user’s own logs.

There is no third-party AI service and no server-side processing. The in-app assistant operates entirely on-device using a deterministic, rule-based classifier. User prompts, health data, and logs are never sent to OpenAI, Anthropic, Google, or any other external AI provider.

Free Features • Period tracking and basic next-cycle prediction
• Calendar view, App Lock, and iCloud sync
• One-tap data deletion

Fertility AI+ — $1.99/month • Adaptive predictions with confidence levels
• BBT-based ovulation confirmation
• Anomaly alerts (late periods, irregular cycles)
• Charts for cycle history, BBT, and hormone levels (E2, P4, LH, FSH)
• On-device assistant (rule-based, no LLM, no network calls)
• Comprehensive logging (symptoms, mood, BBT, cervical mucus)
• PDF reports for healthcare professionals
• Apple Health sync, Lock Screen widgets, Live Activities, smart fertile window notifications, and Apple Watch app support

Privacy First No analytics, no trackers, no ads, and no third-party AI services are used. All data remains on the user’s device and syncs only via their personal iCloud account (CloudKit private database). The term “AI” in the product name refers solely to the on-device, rule-based assistant.

Important Notice This app is not a contraceptive. It is intended for tracking and awareness purposes only and does not replace professional medical advice.

Subscription Terms Fertility AI+ is an auto-renewable monthly subscription priced at $1.99 USD (or local equivalent). Payment is charged to the user’s Apple ID upon confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period. The account will be charged within 24 hours prior to renewal. Users can manage or cancel subscriptions at any time via their App Store account settings. No free trial is offered.

Privacy Policy: https://www.notion.so/34cb2755b77781f3a4f3cc619fc5903d
Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Support: https://www.notion.so/34cb2755b777815bb044eaa2fa3e33f4