Flutter mobile android/ios/windows/web app

Implement in flutter
1. multi page navigation
2. rest api client
3. login page
4. inbox list page with new message button
5. message details page and buttons
6. alarms list page
7. alarms details page and buttons
8. settings page
9. notification handler and play sound on receive notification. open application from notification.

support phone/tablet/laptops on android/ios/windows/web app