heyOBI Profi is a free Android application developed by OBI GmbH Co. Deutschland KG. It is a digital platform designed specifically for professionals in the trade industry, offering exclusive benefits and services that simplify material procurement and shopping. The app includes an individual company discount program, a digital shopping list, and an integrated market navigation feature. Through the heyOBI Profi app, companies can create employee accounts with a digital customer card, allowing them to keep track of all purchases and returns. The app also offers a full-service rental program for heavy equipment and material delivery, as well as a buy-on-invoice option. To register for heyOBI Profi, a company must present a business license at a participating OBI market. Overall, heyOBI Profi is a valuable tool for trade professionals looking to streamline their material procurement and shopping process.