Unlike Revolution R Community which is 100% free to  everyone, our commercial-grade Revolution R Enterprise distribution bundles R with  proprietary components from our development team, which are normally  available only to paying subscribers. (Those subscriptions are the way  we get income to keep the company going.) Those components include our  full ParallelR libraries for parallel programming, enhanced for 64-bit  Windows, and our R Productivity Environment with full code editing and  visual debugging on Windows ... and there's more to come soon in our  roadmap.

Today, we're making the full  Revolution R Enterprise distribution available to anyone in the academic  community, free of charge. You can read all the details in this  page about the free academic download program. All you need to do is fill out a form  attesting that  you're a professor or a student at an accredited degree-ranting  institution, and you can download the Windows 32-bit, Windows 64-bit or  RHEL 5 version, free of charge.

The only restrictions are that it's  for use on a single-user workstation, and you won't have access to live  technical support. (For universities/schools that full support on a  server or cluster, subscriptions are still available.)

Since  there's so much overlap between the R community and the academic  community, this is just one more way for us to give back to the  community. We want to make sure everyone in academia gets access to both  R and all the extensions we've made to it, and will make in the future.

Revolution Analytics: Free Single-User Subscription to Revolution R Enterprise  for the Academic Community