It’s probably a bit harsh to write this about a free app, but this really is a terrible design. The user experience is horrible. I’m interested in doing the course, but this app has put me off. It’s way too busy, the instructions are much too fast, and they are happening as you are trying to learn the exercises. I found it stressful to have somebody rapidly talking to me with the messy interface in the way. This tends to happen when wrappers are put around web apps like this, but even as a web app I would find this off putting. For the cost of the course (more than $500) I would expect a properly native app without all the clutter. The human interface guidelines exist for a reason, because apps like this are antithetical to how we interact with mobile devices. Such a shame there are no decent Buteyko apps, what little I have l learned has been much more helpful than mindfulness.