Firebase Athentication(Google and Fb Login),Realtime database,Firebase push notification,Firebase Quiz
Please insert appropriate app-services.json and correct sha-1 for google login and Create an app on Fb developer console for implementing fb login.
Sharing some screenshots of app here.
Home screen

Main Post Screen(Hot questions)

Show Questions in amazon kindle like screen

Kindle features

Firebase quiz

Side menu
firebase realtime database model screenshots uploaded