We use the Next Exit also and find it to be a valuable tool for the Interstate Highways. When traveling state roads I have two apps on my phone that are very useful, Trucker Path and Gas Buddy.
Trucker Path is excellent for finding truck stops, low clearances, rest stops, weigh stations, etc. on all roads, not just Interstates. This is an outstanding app.
Bob and Joyce
2013 CC Silverback 29RL
2010 Ford F250 XL Crew Cab 6.4 liter diesel
ATU Local 788