Thank you for trying out the app.
For phantom drain issue, we have tested the app before with several cars and we haven't had any issue, I've heard since version 2019.8.5 people had issues with the phantom drain but it wasn't related to our app.
However, because we don't collect any statistic data from your car like many other apps in the market, we don't wake up your car at any time if you don't open the app to use it. Even updating complications on apple watch only happens when the car is awake, and if it's not, no update happens to complications.
This post has some more information about the phantom drain on version 2018.8.5
I just need to be as clear as possible on this.
1- With the Commands app enabled I lose between 0.5 and 1.0 MPH while the car is sleeping
2- With the Commands app disabled I lose between 0.10 and 0.13 MPH while sleeping
Stated a different way with the app enabled phantom drain is 5 to 10 times worse than it is with the app disabled. For testing I have Sentry disabled and USB devices are fully disconnected so neither of those are contributing to this. The one and only variable remaining is the Command App, and the difference when it is disabled is remarkable.
I like the app and wish this wasn't the case but its just the fact.