QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.

Twicca - Twicca is a Twitter client for Android that is simply awesome. Features: * Notification

A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.

Flamingo for Twitter - Flamingo for Twitter is a bright and colorful Twitter client that comes with a simple interface.

Trivia Crack Kingdoms - The amazing quiz game that lets you test your knowledge and challenge your friends to see who is the smartest. Developed by Etermax

Tweeticide - Tweeticide – Delete All Tweets is a commercial app that enables you to delete all of your tweets at once.