Buy and sell it’s simple and fast. Download the best free classifieds app to buy and sell what you want. Post in three simple steps. Take a picture, describe your ad and add some contact data to start selling your products. No intermediates between you and the product. We want to gather people together, that’s why you’ll always be able to contact directly with the sellers. Chat in your in-app message service without leaving the searching. Your ads are in the spotlight that’s why we develop the best display to make your ads shine. OLX. Everybody has something that someone else wants.