I work on the business end of three Yoga studios. I feel the apps are great, functional and intuitive for my clients. It works great on my iPhone and iPad. As a matter of fact, Ive had less trouble with MindBody on the applications than the PC version. The only time I run into trouble is when MindBody totally crashes during rush hour. Inconvenient, but not impossible to figure out. Its a useful app to have if youre in a pinch.