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.
There are several existing chatting services out in the market with large user bases, however, many focus excessively on monetization while rarely on privacy and security issues, which I believe should have been protected long time ago. LinChat is a secure chatting service that protect users' privacy. Furthermore, a lightweight social network is integrated, which allows users to post status, like or share status, and leave comments.