There are currently three Cryptocat clients:
* Cryptocat: The original client. It's a signed browser extension that you download and install in your browser. It offers OTR implemented in JavaScript in a friendly chat interface. We take every precaution to make JavaScript more secure, such as using a signed browser extension to prevent code delivery MITM, using native cryptographically secure random number generation, and so on. More info on our JavaScript approach at my personal blog: http://log.nadim.cc/?p=33
* Cryptocat for iPhone: No JavaScript here! This is an app written in Cocoa Touch/Objective-C that implements OTR and our multiparty group chat protocol. It's really quite a simple app compared to what we had to do to put encrypted chat in the browser. It's new and needs review! Find bugs! Help a cool open source project! We'll send you rewards!
* Cryptocat for Android: No JavaScript here! This is an app written in Java that implements OTR and our multiparty group chat protocol. It's really quite a simple app compared to what we had to do to put encrypted chat in the browser. It's new and needs review! Find bugs! Help a cool open source project! We'll send you rewards!
All three clients are made to be 100% inter-operable.
