Android Studio Project of Sudoku.
An app that has 3 different sudoku you can try to complete. It saves your score in an SQLite database and retrieves it when you open the app, showing you the 3 top scores, with the name of whom scored it. It also lets you create a Calendar event once you complete a game, so that you can save the date in which you completed that game and its score. It also has a WebView as a help page, which you can access through the toolbar menu.