*UPDATED* Xert is the only app that I found that can connect to the Powertap P1 pedals using Bluetooth on my Nexus 6P and actually add up the power from both pedals! I compared with the readings from my ANT+ dongle on my PC in Tacx Trainer Software and they match. This is a great app that deserves 5 stars! The online analysis seems very nice too, but I didn't test that part very much yet.
Some of awe found here
Keeps crashing since 2.0 update Runs fine until the 2.0 update. Keeps crashing after the login screen. Update: exceptional service, a fix was delivered within 24 hours.
Neil Mouat Some initial problems with app crashing on start up. seems to be working now can't wait to try live
Shifting the game Xert is so mind-shifting that it makes you stop hoping for an app that will simply replicate the trusty old data fields on your favourite brand of gps unit. The version released on 23 June 2016 has noticeable reliability improvements.
Haven't used the app riding yet, but its very hard to navigate. Doesn't follow the Android Design Guidelines and doesn't have custom gear options (I run a 53/38 with an 11x23t). The Scan feature shows address names (ok for ANT) and not device names (for BT/BTLE). Other settings seem to be in metric when set to imperial. Just not user friendly at all. Also app just keeps closing randomly.