RefreshFM is available in two versions, Developer and Distribution.
The Developer version has a Single User licence and a Site Licence. Single User is as described, for a single developer ( individual ) to use on all the solutions that they update. The Site Licence is for a multi developer company and lets all the developers in an organisation use RefreshFM for all their solutions.
The Distribution licence is for a single product that is being updated. This may have multiple developers working on it, and can have an unlimited number of end users of the product.