Learned from beginning to advanced topics from Route, Such as: * Views & ViewGroups & Recycler View* Theming & Coloring* Handle different logics such as: clicks, visibility of Views* Interface Callbacks "Delegates"* Git "Version Control Systems" VCS* Kotlin Coroutines * Design Patterns & SOLID Design Principles* Network calls and API Integration (REST)* Integration with Google Maps,* Integration with Firebase * ViewModel "MVVM Architecture Pattern" * Data Binding* Dependency Injection - Hiltand made 4 Apps: 1- "Islami":* is an Islamic application we learned from it how to use BottomNavigationViews to navigate between different Screens & how to read from a file to show "Quran" corresponding to "Sura's" name, and there is MP3 to play Quran from API as a Radio and also, we learned localization & switch between Themes "Light & Dark"2- "To-DO":* It's an application we learned from it how to save "TO-DOs" into Mobile Local Database and how to get data and store data and also, we learned localization & switch between Themes "Light & Dark"3- "News":* It's a News Application from its name, we learned how to make and API Network Calls, and how to make code Clean as Possible 4- "Chat":* It's a Chat Application that used to communicate with Each other inside Rooms, and each room contain title of interest and you can join anytime, We Learned Firebase Authentication & Firebase Firestore to help us achieve our goals and create the application.