Checked September 2026
Antares
Harmony Engine review
Vocals
A real-time harmony generating plugin that builds arrangements from a single vocal or monophonic track. Best for harmony vocals from a single take. Price not published on the developer's site.

Key features
- Real-time harmony generation
- Works on vocals or monophonic instruments
- Perpetual license option
- Included free month of AutoTune Unlimited
Pros
- Quick vocal harmonies
- Perpetual license or subscription available
Cons
- Price not shown on the fetched page
Harmony Engine alternatives
- $459once
Antares Audio Technologies
Auto-Tune Pro 11
Industry-standard automatic and manual pitch correction plugin with Auto and Graph Mode.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported - $699once
Celemony
Melodyne 5 Studio
Flagship note-based audio editor for polyphonic pitch, time, and formant editing.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported Real-time automatic vocal pitch correction for studio and live performance.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Sources: www.antarestech.com