RV Trip Wizard is simply the best! Coupled with the Harvest Host app, you will have all the information and planning horsepower you need to stay organized and travel as “stress free” as possible.  This program is powerful, so it needs certain criteria that YOU enter as “Your Travel Preferences” so Trip Wizard can help you make travel decisions. RV size, weight, length, fuel tank size, miles per gallon fuel economy and your estimated average travel speed are entered into the default settings. Your preferred HOURS of traveling OR preferred number of MILES traveled per day are entered.