'Tune It' is a VST plug-in that helps to tune any instrument (guitar, bass, piano, sax, flute...).

It needs a VST host such as Cubase or Logic audio to work and is available for both Windows and Macintosh platform.
Its main function is to give a very fine and precise tuning but it can also be used to control the pitch in real time while singing or practicing fretless instrument (double bass, violin...).