Harmonizr is a new vocal harmonizer effect for iOS that lets you sing a melody, setting the appropriate key centers, and Harmonizr will add up to 3 voices of automatic harmony.

A preset mechanism allows you to change the harmonization, and an editor allows you to customize how you want to harmonize each type of key center (major, minor, and dominant).

Harmonizr also supports MIDI input, both to detect key center, and to provide a mechanism for keyboard players to manually specify harmony.

There is a 10-voice limit in manual harmonization, and it can be used in conjunction with the automatic voices to create a richer sound, with a total of 14 voices.

Pricing and Availability

Harmonizr is available now for US $4.99.