egasosa is a free iPhone app developed by Egasosa Atividades de Internet Ltda - ME. It falls under the Utilities & Tools category. With egasosa, users can choose a gas station (Shell, Ipiranga, Petrobras, or Bandeira Própria), select their preferred type of fuel, and reserve it at a discounted price. The reserved price is guaranteed for up to 2 days.

To use egasosa, simply visit the chosen gas station, refuel your vehicle, and present your QR code. The app has helped users save over R$ 500,in discounts.

Please note that egasosa is gradually expanding its availability, so not all cities have participating gas stations. However, you can download the app and if egasosa is not available in your city, you will be notified as soon as it becomes available.