BetweenUs is the shareware application package that can help you to be in touch with all your friends, family and colleagues together. BetweenUs works both as a server and as a client to the network. You can have an online conference with as many as 100 people together at the same time. The best thing about this application is that it can work with any of the three encryptions i.e., Public-key mode, Symmetric mode and PGP-compatible mode. Here Public-key mode works with 3072-bit Diffie-Hellman key-exchange protocol, Symmetric mode works on a secret pass phrase and PGP-compatible mode works on an existing Pretty Good Privacy installation. All the above encryptions are safe and used by the best mathematicians in the world. Some of the salient features of this application are uninterrupted and strong encryption, user defined interface, public key cryptography, option password protection, etc.

To use this application you have to be an expert in cryptography.