Rent a car with the tap of a button. No reservations are necessary. With the Avis Car Rental app, you can make, modify, or cancel reservations using the tap of a button. There is no need to book in advance. When you're ready to pick up your car, the Avis Car Rental app will provide you with a receipt, the option to view and review your past rental history, and the ability to reach out to Roadside Assistance for immediate help. You can also earn points by opting in at the end of the rental.