Fig. 1. (2023) XtraWine homepage [Web page]
Fig. 2. (2023) From left to right: a product sheet on the Vivino app; the actions available on the product sheet on Vivino; the Vivino Wine Scanner for Android

Fig. 3. (2023) From left to right: editorial section on the Delectable app; an information sheet on Delectable; Delectable social orientation made evident by its diverse sharing options
Fig. 4. A product card in the “Search, Compare & Buy” area (top-down scroll visible from left to right). Here, users can perform further searches using the top search bar, read the product details including some suggestions from the Virtual Sommelier, and take various actions tapping the floating “plus” button at the bottom right: “Add to Wishlist”, “Add to My Virtual Cellar”, “Add personal note”, and “Rate”. The top section features a service menu housing the cart, notifications, and a hamburger menu for additional items. Just below, a navigation menu presents the primary sections: “Search, Compare & Buy”; “My Virtual Sommelier”; “My Virtual Cellar”; “My Account”.
Fig. 5. “My Virtual Sommelier” section offers expert wine consumption guides, personalized wine suggestions, and insights into local wineries and wine bars through an integrated navigable map. The feature also facilitates label scanning when eating out and gives the option to save tasted wines to the “Wishlist” or “Virtual Cellar”. Accessed via the floating “plus” button at the bottom right, these functions empower users to seamlessly leverage the app’s full capabilities while on the move.
Fig. 5. “My Virtual Cellar” section, with personal wine collections.