The following licenses are currently available to purchase from the pricing page.
The Developer Edition License is a single user license for local development work. It enables you to run Data Sync interactively but cannot be used to schedule Data Sync/ Run Tool projects.
The Server Edition of Data Synchronisation Studio provides the Data Sync Designer and Ouvvi Automation Server and is intended to be run on a single machine for both Development and Production use.
The Server Plus License supports activation on 3 machines for a typical DEV/UAT/PROD configuration. It can be used to run your main production machine and then have 2 activations available for development work.
The Server Advanced License is a company wide license for use on multiple machines. If you need a team of developers working on your data integration projects then this is the best license to use.