The best alternatives to WikiTrivia are Today in History, Timeline Expert, and Vassal. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of WikiTrivia?
Agree.com— Free e-signature for everyone with invoicing and payments!
"Today in History" is an app that sends daily notifications with historical events from the same date in previous years. It organizes events by categories like science, art, and technology.
Timeline Expert presents you tweets from people you follow and asks you to guess who said what. The more you guess correctly, the higher your overall score is.