Main menu: Start Quiz: Start a new quiz. Settings: Application settings. Privacy: Link to privacy policy. Exit: Close the application. Settings Screen: Selecting the difficulty level of questions. Setting the response time (default 90 seconds). Turn on/off sound effects. Back: Return to the main menu. Quiz interface: Multiple choice question. Countdown timer for response (if enabled in settings). Notification of correct or incorrect answer. Next Question: Moves to the next question. Once the quiz is completed, the results and score are displayed, along with a button to return to the main screen.