It works for me

I have been looking for an APP like this for a long time. I need to monitor my exercise intensity levels for health reasons during my exercise. Initially I had a problem with pulse detection. I tried several times and found out the pulse detection depends on my finger position and stability. Sometimes I have the same error message but generally it works well. It’s better for me to get a message about the problem with pulse detection than to get wrong advice about my exercise intensity which I have to monitor closely.

Stephen.Be about Fitness Capacity Test