Quite Simply, the idea is facts which "popup" during the movie you're watching on your tablet or phone.
It also tries to search the internet for facts on a movie.
It will share trivia facts, filming locations, scenes, who's in the scene, songs playing, pictures and whatever else I can think of, all timed to your movie.
There's also 3 movies that the audio detection works with. They are : - Back to the future - Jurassic Park - Top Gun: Maverick
Give it a try! Whether it's good or sucks, let me know.