All I Need

The best pitch correction currently available on iOS is their "pitch assist" preset - transparent, smooth and reliable. This one preset alone is worth the app price, but you also get 49 other vocal FX, many of which are quite nice.

Understand you cannot change a single parameter on these presets. Canned, out of the box, locked up, whatever - they sound good as is. Ive never noticed the inability to tweak the presets I use. I like them just the way they are - great sounding.

On sale for $3.99, you simply cant go wrong on this one.

Sturgeons Law about Voice Rack: FX - Vocal Effects Processor