Subscriptions & billing: Purchases and refunds for in-app subscriptions are handled by Apple (and by Google on Android when available). Use Settings → Apple ID → Subscriptions on your iPhone to manage or cancel. Use Restore purchases in the app if your access doesn’t update after subscribing.
Sign-in issues: Apple Sign-In and Google Sign-In require a normal network connection. If you use a development build, Apple Sign-In may not work inside the Expo Go app — use a release or dev build of Boulder Strength.
Data & account: You can delete your account from the in-app Profile flow where provided. Export options for workouts may be available from session details where the app supports them.
Sync: After signing in, open Profile and use sync / retry if sessions or recovery data don’t appear from another device.