Regarding the "crack" and "license code" you mentioned, I want to emphasize that using cracked software or bypassing license codes can be against the terms of service and potentially harmful to your computer or audio projects.
Autotune EFX is a popular audio processing plugin used for pitch correction and effects. The version you mentioned, 9.3.5, seems to be a specific iteration of the software. autotune-efx-9-3-5-with-crack-license-code-torrent-2022