Alternatives and complement tools
If you searched for because you have no budget and cannot use a trial, do not despair. There are excellent freeware alternatives that achieve real-time pitch correction.
Waves Tune Real-Time is a pitch-correction plugin by Waves designed for real-time automatic tuning of vocal performances with low latency, intended for live tracking and mixing.
Disclaimer: Prices and offers mentioned reflect market status at the time of writing. Visit Waves.com for current pricing on Tune Real-Time.