codeXX.health is a privacy-first cycle app with an AI assistant — and we're opening a private closed study to a small group of first users. Help shape the future of menstrual health and get early access before anyone else.
Everything for your cycle in one app — from daily tracking to an AI assistant, while your most intimate health data stays private.
Log your period, flow intensity, symptoms, and mood with a tap. Predictions are calculated from your own cycles and take every new one into account.
Ask questions about your cycle in your own words. If you allow it, the assistant knows your current phase and the symptom types you logged — nothing else. Free: 5 questions a month, Pro: up to 300.
Get nutrition, workout, and mindfulness recommendations for your current cycle phase. The symptoms and mood you log decide which come first.
Predictions and recommendations are calculated on your iPhone, and your entries are stored there encrypted. Shared learning from the community comes next — only with your consent.
See how your symptoms change across weeks and months in clear charts.
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. Everything is calculated on your iPhone, and the more cycles you log, the better your predictions fit you.
Log your period, flow, symptoms, and mood in seconds. Every data point makes your predictions and insights more accurate over time.
Predictions and recommendations are calculated on your iPhone from your own entries, which are stored there encrypted.
Receive daily recommendations for nutrition, exercise, and mindfulness. Ask the AI assistant about your cycle. Export reports for your doctor. Know yourself.
Home Dashboard
AI Health Chat
Cycle Calendar
We built codeXX.health on a simple premise: the most intimate health data in the world belongs on your iPhone, not on our servers.
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 menstrual health. Leave your details and we'll personally reach out to selected participants.
✓ Invitation-based · ✓ Limited spots · ✓ No spam, ever
We store your name and email address only to contact you about the study and delete them when it ends. Details: Privacy Policy · Datenschutz