Known for its "Live" pitch tracking, the free version of Graillon 2 by Auburn Sounds is highly regarded for its vintage, smooth correction. 5. Pro Tips for Better Tuning
So, what about Auto-Tune for Audacity? The good news is that Antares Audio Technologies offers an exclusive version of Auto-Tune that is specifically designed for use with Audacity. This version of Auto-Tune offers all the features and functionality of the standard plugin, but with some additional benefits that are tailored to Audacity users.
Because Audacity supports and LV2 (on Linux) and VST2 (legacy), you have options.
Do not seek “Auto-Tune exclusive to Audacity.” Instead, use Audacity for recording/editing and a free DAW + free pitch plugin for correction. For true real-time Auto-Tune, purchase a DAW and Antares Auto-Tune Access (approx. $99 total).