Drive 15,000 miles per year in my motorhomes and only use Google Maps. Real time traffic, automatic re-routing around traffic, and absolutely free (other than data).
When planning, I'll use AllStays Camp and RV app which shows pretty much every fuel stop, walmart, cracker barrel, campground, etc. Once I pick the next stop, it links right to Google Maps to provide directions.
Tom and Katharine
'07 Winnebago Tour 40TD, 400hp Cummins
'17 Winnebago View 24V, '02 R-Vision B+
RVing for 20 years & 200,000+ miles