Great app but limited and premium is way too expensive. All I want to do is create custom interval workouts for my smartwatch. But ofcourse it limits the smart watch application to three exercises. Basically unusable to me unless I edit the sample Tabata workout. But I'm not subscribing or paying all that money just to get one feature. I already own an expensive smart watch. Might as well use a Garmin smartwatch where all these features are included.