New version requires registration, otherwise perfect

I love this app, and have been using it for around a year now.

Great to look at, tons of workout options, and good control of the sequence mid-workout. Works well on my "ancient" iPhone 4S.

One complaint: the latest version requires registration to use.

n0man about 7 Minute Workout - Beginner to Advanced High Intensity Interval Training (HIIT), v2.0.1