My experience with Canion hasn't been good, although I believe a proper manual would help (and yes I do know its unsupported yadda yadda yadda). It doesn't appear that the issues with Canion are consistent, although I would at least like to monitor charging rate (which I did once or twice) but lately that information is blank. Is there a way to force the app to show charging rate ? Note that I have a proper OBDLink dongle, not a crappy chinese one.
I notice that at least some users are happy with Canion, but to date I haven't found any debugging clues. The app usually starts OK but what it shows varies with the day and there doesn't appear to be any way to control its whims. Maybe its just female ?
I intend getting the OVSM board shortly, hopefully that will prove to be a more professional solution.