# ProAct

> Pro-Act is an iOS app that reads Apple Watch and iPhone biometrics (HRV, sleep, heart rate, barometric pressure) and uses AI (on-device Apple Intelligence on supported iPhones, with cloud analysis via Claude as a fallback) to estimate migraine risk up to 48 hours ahead. Raw health samples never leave the phone; cloud predictions use aggregated metrics and are not stored server-side.

Site: https://proactmigraine.com

## Get Started

- [How ProAct Works](https://proactmigraine.com/methodology): Our approach: signals we use, how predictions work, what we are tracking, and what we do not claim
- [About](https://proactmigraine.com/about): The team, mission, and how we work