Antares Auto-Tune 3 DirectX discontinued legacy product and is no longer available for direct purchase or new downloads from the official Antares website.
Because Auto-Tune 3 DirectX is discontinued, you cannot buy it directly as a "new" product from the manufacturer. You have two main paths:
DirectX Download and Compatibility
Let’s be transparent: Auto-Tune 3 DirectX is abandonware. You cannot buy a new license from Antares for version 3 specifically. However, here is the legal nuance: