The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Deploy Inc.:
Finally there's a way to share only the contact details you want to, quickly and easily. Send custom built vCards. The Share My Contact App lets you share contact info la carte via any one of the available sharing options available on your device. There no account registration to get started, just download and get started.Import your contact info, then pick and choose the details you want to share and create new contact cards to share with anyone anytime. No more need to send all of your contact information or copy and paste the relevant details into a separate email or text message. Simply select what you want to share, how you want to share it and hit send.Share via any of the following options:- MMS- SMS- Email- QR Code- AirDropYou can also select and share selected contact details for anyone in your address book. Just navigate to the contact you want to share details for, select the info you want to share and send.You can also try Share My Contact Lite free version, which offers the quickest way to share your custom vCard.