Open in Expo Go

Install Expo Go from the App Store first. Then scan the QR code below from inside Expo Go.

Scan with Expo Go
QR code
Inside Expo Go (Home tab): tap Scan QR code and point at this code. Loads in ~30 s on first open.
Or try direct link
Tap to open
If Safari says "address invalid", that's normal on iOS 17+ — use the QR code above instead.
1
Install Expo Go from the App Store (free, ~50 MB).
2
Open Expo Go and tap Scan QR code at the bottom of the home screen.
3
Point at the QR code above.
4
Sign up with any email + password. Stand sideways 6–8 ft from the camera, capture, see your A–F posture grade.
URL: exp://postureai.chaipool.org