MCFTAG is a free iPhone app developed by CHARLES YARBER in the Social Networking category. This digital business card app utilizes NFC technology to enable users to add social profiles like Instagram, Facebook, and website links to their card. By providing valid usernames or links, users can easily share their social media accounts directly from the card.

With MCFTAG, users can either write their profile URL onto an NFC tag if they have one or complete their profile and share a link through the app's sharing feature. This app simplifies the exchange of personal and social information between users through NFC tags, QR codes, or profile links.