Auto-Key | Music key detection app for iPhone and iPad

Detect the musical key of any tune whether in the studio or on the go. Instantly share and sync the musical key with your Auto-Tune session running on your computer DAW.

Auto-Key detects the key by capturing a few seconds of audio and returns the most likely musical key. It also returns the diatonic key.

You can use Auto-Key mobile on any audio coming from a speaker or from an acoustic instrument or a voice. Tap on the Auto-Key logo in the app home screen to find the key.

Auto-Key Mobile was developed by Antares Audio Technologies, the inventors of Auto-Tune®.