I had taken up an annual subscription -12 months for this app and it worked well for sometime.I could reduce approx 12 kilos in 6 months.However,I was dissatisfied. All good fitness instructors alloted to me kept leaving them.They all would reassign clients like me to the existing instructors.This happened thrice with me.It was very frustrating as I had adjusted well and was in good sync with my original intructors.New ones wasted so much time to study how the body 'responds'.