GoodUI Evidence - People's A/B test results that show which UI ideas work best

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.

Decidr - Make better decisions with quick A/B polls

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

PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.

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