codeXX.health is an AI-powered, privacy-first cycle intelligence app — and we're opening a private closed study to a small group of first users. Help shape the future of women's health and get early access before anyone else.
A complete cycle intelligence platform — from daily tracking to AI-powered insights, all while keeping your most intimate health data completely private.
Log your period, flow intensity, symptoms, and mood with a tap. Intelligent predictions learn your unique patterns over time.
Ask your cycle anything, anytime. Your personal AI assistant understands your patterns and delivers science-backed answers — unlimited.
Get personalized nutrition, workout, and mindfulness recommendations tailored exactly to your current cycle phase. Every day, different.
Federated machine learning that improves from community patterns — while your personal health data never once leaves your device.
Discover patterns in your symptoms across weeks and months with beautiful charts and actionable, science-backed insights.
Generate a comprehensive health report ready for medical appointments. Share months of cycle data and symptom trends with your healthcare provider.
Your cycle is more than a period — it's a dynamic hormonal system with four distinct phases, each with its own energy, mood, and opportunities for your body.
The shedding phase. Low energy is natural and intentional — prioritize gentle movement, iron-rich foods, and deep rest.
Estrogen climbs. Creativity and motivation surge — the perfect time for new projects, social activities, and harder workouts.
Peak estrogen and testosterone. You're at your most energetic, magnetic, and communicative. Lean into it fully.
Progesterone rises. Focus on nourishing foods, mindfulness, and lighter exercise as your body prepares for the next cycle.
Get going in minutes. The longer you use codeXX.health, the smarter it becomes — learning your unique patterns entirely on your device.
Log your period, flow, symptoms, and mood in seconds. Every data point makes your predictions and insights more accurate over time.
On-device AI analyzes your unique cycle. Using federated learning, it gets smarter with community insights while your personal data stays private — always.
Receive daily personalized recommendations for nutrition, exercise, and mindfulness. Ask the AI anything. Export reports for your doctor. Know yourself.
Home Dashboard
AI Health Chat
Cycle Calendar
We built codeXX.health on a radical premise: the most intimate health data in the world should never leave your iPhone.
We're inviting a small group of first users into a private, invitation-based study of codeXX.health. Get early access, help shape the product, and be part of the future of privacy-first women's health. Leave your details and we'll personally reach out to selected participants.
✓ Invitation-based · ✓ Limited spots · ✓ No spam, ever