For a trial or new purchase, Auto-Tune Central will guide you through the easy activation process. Once activated, you can reopen your DAW, and Auto-Tune will be available as an insert effect on any audio track.
Beyond its corrective capabilities, Auto-Tune is also famous for creating the iconic "Auto-Tune Vocal Effect"—the robotic, pitch-perfect sound popularized by artists like Cher and T-Pain. It has become the overwhelming tool of choice for audio professionals, used daily to save studio and editing time, ease the frustration of endless retakes, and capture once-in-a-lifetime performances.
If you are looking for a free, permanent solution, there are excellent alternatives that work well on macOS: