Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.

YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.

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

Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.

Akinator - Akinator is an entertainment app that acts like a digital genie that can read your mind. The game will ask you a few questions about the character you have chosen, and it will attempt to guess the character from your provided answers.

Harpy for Twitter - Harpy for Twitter is an Android app developed using Flutter to provide a smooth experience.