MercadoLibre is the app of one of Latin America's largest e-commerce sites, that lets you buy and sell thousands of products through mobile devices.
Functions:
Lets you buy and sell, search and filter by price, new or used products and by categories, check purchase history and share listings via email, Facebook and Twitter.
Activities:
If you have questions about a product or user, you can compare prices and send questions to the seller; you can also advertise your own products and services.
Languages:
Available in English.
Controls:
Intuitive, easy-to-use and secure interface since it involves credit card transactions.