Xtra is a free lifestyle app designed for iPhone users, enhancing the shopping experience at Colruyt stores. It allows users to create customized shopping lists featuring products and promotions available at their preferred Colruyt location. The app enables sorting lists by product category or store layout, facilitating efficient shopping trips. Users can also reserve groceries online through the Collect&Go service, choosing between various pickup points or home delivery options for convenience.

In addition to its shopping list features, Xtra offers a QR code system for automatic discounts at checkout across partner stores. The app supports secure payments by linking a bank account, allowing users to pay directly from their smartphones, eliminating the need for physical wallets. Xtra also provides a comprehensive overview of spending by product category, and offers easy access to over-the-counter medications and health products, making it a versatile tool for everyday shopping.