The game is called Fluent and this is how it works:

There are 20 different trivia categories all dealing with grammar and vocabulary.
You’ll have to answer each question before you run out of time.
You have 3 lives.
You’ll need to answer 5 questions correctly to go to the next level.
As you level up, you are given less time to answer.
You can play it pairs (or 2 teams) and the winner is the top scorer after 8 questions.
Ready for some fun, a bit of challenge and lots of learning. Here we go, Fluent