Played with iExitInterstateExitGuide for a few minutes before deciding to pay the $2 to remove ads. Sadly, although the description says it supports "family sharing", I had to pay another $2 to remove them from my wife's phone. Yeah, it's not much, but it's the principle of the thing.
Other than that...no CarPlay? STILL?? Come on. I know you are subject to Apple's rules...but you sound have found a way to meet them by now. You could make a separate version that is CarPlay compatible and sell it for $5 too...or as a $3 upgrade to the paid version we already have.
Besides all that...iExitInterstateExitGuide is pretty slick and works just like one would want it to while going down the road. It would be nice if things could be arranged so it works as a "punch out" from the navigation app (Google Maps, Apple Maps, Rever, Road Tripper, etc.) someone is already using. As a stand alone app though, it's great.
Would also be nice to have something like this for US Highway signed roads.
Can't wait to use it on my upcoming road trip!