SwearBy App is a free lifestyle application available for iPhone users. The app allows users to shop while browsing influencer pictures, reviews, and promotions seamlessly on any page of their iPhone. Users can engage by posting their own content, finding influencers' discount codes, or commenting on items they "swear by". By linking their Instagram, X, or TikTok accounts, users can post under their @handle for easy recognition by followers. Moreover, users have the flexibility to choose whether each post is public or private.

For instance, if a user is interested in an Abercrombie dress, they can use SwearBy to view influencer images, comments, and promos from Safari, the Abercrombie app, or within the SwearBy app itself. The SwearBy Share Extension simplifies the process of posting directly on the item being viewed, enhancing user engagement and interaction.