Been evaluating Cadence for a couple months, and I like it. Looked at many others and their evaluation was totally crippled and they wanted a purchase to enable things like two sensors, etc. On the other hand, cadence eval allows heart rate, cadence (rotation rate of the pedal axis), and speed (I use cycplus for speed and cadence, and moofit for heart). The only annoyance is to get more than just speed, you need to watch ads (maybe 30 seconds worth) which is just annoying enough, but also not abusive, to buy the Cadence app. For these reasons, I think Ccadence is a “buy” (even with the yearly subscription) and rewards the developers for doing a excellent job in creating the app! VERY happy with it, and I’ve looked at many other less capable apps!