There is 2 modes, one of the modes is like a video of words it is really annoying cause you can't read at your reading rate you normally do, the other reading one is also annoying because if I read at my speed it always it is too fast or slow, the story's are boring and take too long to complete, The vocabulary is just terrible. Reading one story (trying to) has made me regret ever going to my school that allows it, a kid even smash his Chromebook cause he did not pass and assessment cause he got 2 questions wrong. DO NOT USE THIS YOU WILL REGRET IT