The BlueFire for Trucks App is free and can be downloaded and installed from the following App Stores. It will run completely in Demo mode so you can get a feel for it's capabilities before purchasing an Adapter.
A Getting Started document is available from the following link. It is highly recommended to download this and go through it before purchasing an Adapter and installing the App.
For a quick look at some of the App pages and to review the App, click on a image below.