Download Free Simple Quiz App in Python Using Tkinter GUI with Source code. Python Projects with Source code. Quiz App is a simple project developed in Python. Quiz App contains a Python Script (quiz.py) and database file. Quiz App is a simple GUI based Desktop Application in Tkinter which is user Friendly and very easy to understand. This application is for testing someone’s knowledge. This contains only user side. User must have first sign up and then login to access it. Then there are 3 categories Easy, Medium and Hard. This Project is very useful for learning and educational purpose.