Description-For-Mac-Full-Install-Package:

RetroShare 0.5.5c is a free C++,QT compiled cross-platform Windows,Linux,Arm,Mac private p2p sharing program that uses F2F public/private encrypted keys. It lets you share files,msgs,chats,channel content and forums securely with your friends, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides fast anonymous file sharing, chat, messages and channels. 

Retroshare 0.5.5c is a Free,Secure,Encrypted Social Network with many features and offers a true Darknet Mode as a user option. Retroshare's Fast Anonymous File Sharing is Unparalleled with any other P2P and F2F networks. 
Come and Join the Fun