Download to try Synesthesia in trial mode before purchasing a license. The trial includes most built-in scenes and essential features, allowing you to test performance and get a feel for the software. The main restriction is that all visual output will be watermarked with the Synesthesia logo.
Head to the
Account Upgrades page to purchase a full license (you can also access this page through the app).
Synesthesia runs on OSX 10.12 and above, and will run best on hardware from 2013 or newer.