Me2 enables quick and easy contact cloning between iPhones using sound and the iPhone’s external speaker and microphone. Me2 does not require Wifi, third party websites with cumbersome logins or Internet connectivity. Me2 is immediate, quick and private.

Sidenote: At the time of posting this program has been marked as beeing freely available without any costs. As this program is hosted with the AppStore the status might change. Authors like to publish their programs for free and / or for promotion purpose and then start charging.

http://appshopper.com/social-networking/me2