The Fiix worked well on my ‘tennis elbow”. I’m still healing so, the remaining stiffness and discomfort (not really what I’d call pain) might fade while the tendon and muscles heal, in which case I’d give it another star. It seemed a bit expensive but it’s actually quite a bit less expensive than physical therapy would have been.
A side benefit is the weight lifting part of the routine has got me lifting weights and getting in better shape overall. I used the same exercises with my good elbow and so both arms benefitted. I’ll continue that part of routine.
The app is a little annoying but I understand its nagging as motivating for some folks although, I had to ignore it after a week or so and just continued the routine on my own.