Can I use navigation while using Driver?

Yes! The setup for doing so is different for iOS and Android so please see below. 

On iOS- 

At this time, Apple restricts any recording app being used and active in the background. You will need to start up Driver, then start up your navigation app (be sure to allow notifications on this) and switch back to the Driver app to hit record. This way you will still get sound and pop-up notifications with your favorite navigation program. 

On Android- 

For Android OS you can use Navigation and chose to either have Driver operating in the background while recording and navigation in the foreground or vise versa.