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Full Stack Mobile App Development · Module 7 of 10

Authentication, notifications and device features

Add login, push and native capabilities.

📖 Key ideas

  1. Login: email, phone OTP, Google/Apple sign-in (Firebase Auth, Supabase Auth).
  2. Push notifications via FCM (Android/iOS) and APNs.
  3. Device features: camera, location, files, biometrics.
  4. Request permissions with clear explanations.
  5. Deep links open specific screens.
💡 Real-life example: Push notifications are a doorbell; permissions are asking before entering a room.
Phone OTPOne-time password via SMS
FCMFirebase Cloud Messaging
Runtime permissionUser approval for sensitive features
Deep linkURL opening a screen