I just started using the app myself and the audio is fantastic I don't even have to use speed level for the audio it doesn't have but if it did the audio is great and the lessons are level-based with a few words then phrases and wow I am impressed ... compared to Duolingo where I have to figure everything out this app is a gold find not gold wait diamond find I believe that I will be able to learn Japanese better using this app and I might even be able to speak it since this is my purpose, in the end, it might take a while to learn but u have done an excellent job with this language app I can't thank you enough have been searching to have a second option besides Duolingo which is not easy to use but this app is fun and easy......