The mobile app opens every signed-out launch on the welcome screen (M-Inicio) instead of a one-time onboarding, so the "seen" flag and Profile → About → Replay intro are gone. Sign-up and sign-in offer Continue with Apple (iOS), Continue with Google and email; Better Auth turns each provider on only when APPLE_CLIENT_ID/APPLE_CLIENT_SECRET or GOOGLE_CLIENT_ID/GOOGLE_CLIENT_SECRET are set (see apps/web/.env.example).
After any sign-in the app reads the Account Preference once, which pins currency, units and data region from the device locale, and lands on adding the first car when the garage is empty, otherwise on the Garage tab.