The version of the app from mid-2015, though clunky and inconsistent, was at least functional; this newest version is utterly hopeless--cannot sync with Mio Fuse or syncs only certain (random) exercises. I will be replacing the Mio Fuse with a Fitbit--I cant believe that a company would care so little about its product and its customers. Customer service admitted as much on one of my several calls to them.
brockkyll about Mio GO