myAudi.com and the myAudi apps for Android and IOS lets you manage your cars and control them in some aspects
The following screenshots show some of the capabilities the myAudi app have. Screenshots from the IOS app (Ipad).
Manage all cars
You can manage all your Audis in the same app
You get the current car status.
You can change the charging target for the car. To preserve the battery the most you should only charge to 100% when you need to.