I recently installed AZ Recorder on my Andriod phone, in order record the Zero app's readouts of speed and kW. The AZ app works flawlessly; the odd thing about the Zero app is the fact that its speed display is 10% slower than the dash reading. Since the dash reads 4% fast, the app reads 6% slow... [which is why I have the calculator app running with 1.06 stored in its memory;]
I find that by folding the throttle-grip flange over and pinching it against the handlebar mount, I can get fairly steady readings at various speeds...
I have been trying to fine-tune my Excel trip-planning spreadsheet, which is loosely based on what I found on Doctorbass' web page... a clip of which is embedded in my spreadsheet. The speed and kW numbers shown were copied from the web page; preliminary checking looks like my '14 SR with power tank, commuter shield, and full set of Givi's is slightly less power hungry at the higher speeds than predicted...
YMMV! =D