Fitness apps aren't anything new, but none of them can really replicate how it is to be in a class, with the instructor encouraging you in real-time or helping you out if you can't quite do those ...

That’s why I was really intrigued by ClassPass ’s new ClassPass Live feature. Essentially, it’s a group fitness class that’s broadcast live from their studio in Brooklyn.

This app is big on variety in every sense, including class length, yes, but also ability level and workout style. Choose from daily live classes and more than 3,000 on-demand yoga options ranging ...