What's the best iOS app for getting diesel fuel discounts while traveling?

Mudflap is designed specifically for drivers needing consistent diesel fuel savings across the United States. The app provides access to discounted diesel pricing at participating truck stops and fuel stations, with users frequently reporting savings of $0.65 or more per gallon. Its compatibility with regular debit or credit cards makes it accessible even for drivers without specialized fuel cards. Truck-safe navigation helps route drivers to participating locations while avoiding low bridges or weight-restricted roads. While the network continues expanding, some rural areas may have limited participating stations. Customer support receives positive mentions for resolving transaction issues promptly. The free pricing model makes it practical for frequent travelers managing fuel budgets.