And for you 2019 owners I have just figured out a workaround for getting the app to work with the bike, I posted it in another thread but will repost here:
"I have now figured out and tested a workaround.
If you unplug the e7000 controller, you can access the app, and change all the settings etc.
Now the bright sparks amongst you will have figured out that you need the controller plugged in to activate the bluetooth connection!
So what you have to do, is activate the bluetooth connection on the bike, then unplug the e7000 controller, then connect with the app. App connects fine, but instead of the usual 3 items its shows up (controller, motor, battery) it just has motor and battery - you can access the motor customisation etc etc.
I also tried plugging in the e7000 once the app had connected, and this didn't disconnect it or do anything weird, but the controller didn't show up on the app.
Bare in mind I have already paired my bike with the app some time ago, so dont know how this would affect a first time connection.
When you have finished just disconnect via the app, and then plug the controller back in
Voila!
As an FYI I use the iPad version of the app."