App by Kai Wen

Bloom Cycles

Your reproductive health, tracked privately and understood completely.

What is Bloom Cycles?

Bloom Cycles is a thoughtfully designed iOS and watchOS app that brings together advanced cycle tracking, on-device AI, and a conversational health guide — all in one place. Powered by Bloom Companion, an AI assistant that runs entirely on your device, it supports you through every phase of your reproductive journey. From fertility and pregnancy to postpartum recovery and menopause, Bloom Cycles meets you where you are.

The problem it solves

Most cycle tracking apps are cluttered, hard to trust, and quietly monetize your most personal health data. Bloom Cycles was built to fix that — giving women a genuinely intelligent health companion that keeps every piece of data on their own device, never selling or sharing it with anyone. The result is a tool that actually serves your health, not someone else's bottom line.

Key Features

Designed to be useful, focused, and easy to understand.

Advanced Cycle Tracking

Log symptoms, moods, and cycle data with precision tools that learn your unique patterns over time.

On-Device AI, Zero Data Sharing

All machine learning and AI inference runs entirely on your device using Apple Metal GPU acceleration, so your health data never leaves your hands.

Bloom Companion

Chat with a conversational AI health guide that understands 26 reproductive health topic categories and delivers context-aware answers tailored to your journey.

Pregnancy Tracking

Follow your pregnancy week by week with insights, milestone markers, and health guidance designed to keep you informed and confident.

Postpartum Care

Dedicated postpartum support helps you monitor your recovery, track mood shifts, and feel less alone in the weeks and months after birth.

Smart Notifications

Timely, personalized reminders for cycle phases, appointments, and health check-ins delivered right to your iPhone or Apple Watch.

Medical Dashboard

A clean, organized health dashboard gives you and your care team a clear picture of your reproductive health history at a glance.

Who this app is for

Bloom Cycles is for women at every stage of their reproductive health journey — whether you are tracking your cycle, trying to conceive, navigating pregnancy, recovering postpartum, or managing menopause.

Why I built it

My partner's doctor recommended a period tracking app, and when we looked at what was available, I was genuinely surprised by how far short it fell. With nearly 30 years of software experience, I knew I could build something better — something that truly served women instead of exploiting their data.

Ready to learn more?

Explore Bloom Cycles and see how it can help.