The app used to be excellent and provided different formats for exercises. The most useful one was a series of exercises that could be previewed, freely navigated and were either time- or repetition based. With the latest update, that was removed and replaced with videos. You can't quickly check anymore, if the exercises are what you're looking for, you can't pause to see a loop of the exercise to learn, you can't conveniently skip or move back to a segment anymore. Time to move to another app