McDonalds Express is a free Android application developed by McDonalds Mesoamérica under the Lifestyle category, specifically Food & Drink. The app allows users to order their favorite food from McDonald's Guatemala through the McDelivery Guatemala app.

With McDonalds Express, users can register with their email, add multiple addresses to receive their food, and pay for their orders using cash, credit card, or mixed payment. Additionally, users can monitor the status of their orders at the time of delivery and take advantage of exclusive promotions.

Overall, McDonalds Express offers a seamless and convenient experience for McDonald's customers in Guatemala who want to enjoy their favorite food at home or the office.