Map My Ride and Road Bike Pro do not attach to both sensors through Bluetooth. I wish this was more obvious on both apps. Used each for a while until my 13 year old cabled system stopped working. Bought the sensor set. Cadence only worked with Wahoo app. Gave up and reached out to tech support. Map My Fitness support replied back the next day that only one sensor at a time can be connected. Don't waste money on both unless you're dedicated to using Wahoo's less than ideal training app. Now the conundrum of figuring out which app I prefer. Suggestions welcome.