I've used Camco's Black Streak Remover. Available in the RV Aisle in Walmart or online at Amazon. Spray and wipe. The window seals on my previous RV streaked constantly, this was the only product that seemed to work without a lot of elbow grease.h...
Sad that they are not transparent about pricing. Others may know of a free app, but I never found one. Garmin makes a great unit for RV travel (marks bridges, etc.), but costs around $400 and uses a separate screen (not CarPlay as far as I know)
I use RvLife Trip Planner to map out routes on my MacBook. I tow a 34’ 5th wheel with a gas pickup, so I plan out gas-friendly stops along the route (pumps that run parallel to convenience stores, easy drive thru, etc.). The trip planner allows you t...