Zabbix - Track, record, alert and visualize performance and availability of IT resources
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Buzz! The Big Quiz - Buzz! The Big Quiz is a Trivia, Party, Single and Multiplayer video game developed by Relentless Software and published by Sony Computer Entertainment.
Prometheus - An open-source systems monitoring and alerting toolkit.
Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.