This video (episode 4 of 12) allows the user to logout from the application. We create a profile activity, and the user has a menu option on this screen to sign out. Logging the user out is as simple as calling one method on our Firebase Authentication instance. InstaFire playlist:    • InstaFire: Android Instagram Clone wi...   Helpful links for more information: ➤ Firebase Authentication: https://firebase.google.com/docs/auth ➤ Intents on Android: https://developer.android.com/guide/components/intents-filters ➤ Menus on Android: https://guides.codepath.com/android/menus-and-popups In these videos, we build a basic Android Instagram app clone using Firebase, written in Kotlin. Our app allows the user to sign in and create posts with an image and description. We use Firebase, an app development platform developed by Google, to power our application. We use various Firebase services such as Authentication, Storage, and Firestore to build our app.