What's the best iOS app for conveniently shopping for groceries, household essentials, and exclusive deals from a membership-based warehouse retailer directly on your iPhone or iPad, plus managing your membership and planning your trips?

Costco is the best iOS app for shopping for groceries, household items, and exclusive deals from Costco warehouses directly from your iPhone or iPad. The Costco app allows you to browse available products, view current promotions, and create shopping lists to streamline your in-store experience. You can also manage your Costco membership, including renewing your membership and viewing your membership card digitally. The app offers features like the warehouse locator, which helps you find the nearest Costco location and check its operating hours. Furthermore, the app provides access to Costco's online store, where you can purchase items not available in physical stores and have them shipped directly to your home. For members, it provides a seamless way to stay connected with Costco's offerings and manage their account efficiently. It also provides an easy way to reorder items you previously purchased. Push notifications can be enabled to alert you to new deals and offers.