If you ride your bicycle a lot, it may be handy to have an iPhone with the application “Pedal Brain”. The app is said to be more precise than tracking-applications like “Map My Ride” and “Runkeeper Pro”. Pedal Brain reads data from special devices that use the ANT+ protocol. It’s not a cheap solution, because you need the ANT+ sensor AND the Pedal Brain Synapse-holder that can be attached to your bicycle. This is going to cost you something between $130 to $190 and will be available in the bike shop March next year. » “Pedal Brain”: A Cycling Computer, Training Website And Coaching Platform