This app provides a facility for users to search and explore repositories. You can search with any keyword and it will list all the related repositories with their fork count, Watchers, Open issues, and its score.
Quizzers app provides trivia quizzes in different categories and users can play these quizzes without registering to the app.
You can select any category and can customize how many questions and also select the difficulties level from easy, medium, and hard.