You can download a 7-day fully functional demo through Waves Creative Access to try it before buying.
If your budget is zero, several free plugins offer real-time pitch correction that rivals Waves Tune Real-Time in quality and ease of use. Compatibility
Waves often runs "Buy 2, Get 2 Free" promotions. If you need multiple tools, this effectively makes the plugin free as part of a set. Best Free Alternatives to Waves Tune Real-Time
If you have your heart set on the Waves version, you don't have to pay full price.
Finding a for a professional tool like Waves Tune Real-Time can be tricky, as it is a premium product with a list price of $199. However, while the plugin itself is not permanently free, there are legitimate ways to get it at a massive discount or explore high-quality free alternatives that do the same job. The Truth About Waves Tune Real-Time "Free Downloads"
Waves almost never sells plugins for their full list price. It is common to find it on sale for $29.99 to $39.99 .