QuizUp

The QuizUp trivia application has all the features that a user would ever want, and it’s difficult to imagine that there is a domain that's not covered. People will be able to find questions from fields such as science, literature, countries of Europe, animals, biology, astronomy, mathematics, and so on.
 
The core component of the game is the competition mode that allows players to play against human opponents from all over the world. The matchup is performed by servers, but you can also challenge your friends.
 
QuizUp has a single player mode as well that can be used to train for the real deal, although there are a lot of questions available for each domain. The gameplay in the single player mode can be hastened by purchasing gems from their store.
 
QuizUp is a free application, but it’s ad supported.