RentProg is an online fleet and rental-business management platform designed to help rental companies coordinate bookings, vehicles, staff, and finances in one system. Operating since 2018, the service reports more than 250 active rental companies and can be accessed from desktop and mobile devices. Its tools support a range of rental operations, including cars, bikes, boats, equipment, taxi fleets, vans, motorcycles, trucks, buses, caravans, and electric vehicles.

Core features include reservation management, a visual booking calendar, detailed booking records, payment and deposit tracking, employee cashboxes, and financial and vehicle analytics. Automated pricing, status updates, reminders, and notifications help teams manage customer requests and rental schedules. Businesses can add a customizable booking form to an existing website, enabling customers to view available vehicles and submit reservations that flow into RentProg for approval. GPS monitoring provides live location, speed, and route information, with alerts and compatibility for more than 2,000 tracking devices. RentProg also offers iOS and Android apps, WhatsApp integration, onboarding assistance, and customer support through live chat and WhatsApp.