iPhone Screenshots


You can remove the vocal of a song, make a song faster or slower, and change the key of a song with this app!

The app is good for performers who cannot find the right music for their key, want a faster or slower version of the music, or cannot find the music of a song with no vocals.

And for others, it is just HILARIOUS to hear your favorite song in a different tempo or key!

Two simple steps in the app:
1. Select a song from your iTunes library
2. After the song is processed, you can then turn on and off vocals with the switch, change the speed and the pitch of the song with the sliders.

ZTX LE Time Stretch/Pitch Shift technology licensed from Zynaptiq GmbH, http://www.zynaptiq.com/ztx(c) Zynaptiq GmbH

What's New

Version 1.6

Support for iOS 11
Faster file processing time

Customer Reviews

2.4 out of 5

13 Ratings

13 Ratings

Awesome with some work to do...


Yes, this app crashes… All the time as a matter of fact. But when it works, it rocks my freaking face off! Since I am a baritone, so many popular songs are out of my range. But with this app I can bring it down to my comfort zone and act like a rock star lol. And also being able to silence the vocal track of a song, it makes you feel like you are really singing with the band. I really hope that the developers work out the bugs, but I am really enjoying this when it works!

Good Functionality(When it Works)


The app is decent, but crashes constantly, takes forever to load a song, and distorts the track heavily. Also the "Vocals" option doesn't just remove the vocals from the track, but removes all the high frequency range, so all you hear is the mid-range instruments like guitar. Being able to adjust the pitch by a half or whole step is a nice feature, though.

Amazing! But...


Great features and it works really well! Hasn't crashed once! But the only thing is that I wish that you would've only made this instead of other apps as well that I had previously paid for. Still five stars! Keep it up!


KBIC International Limited
1.2 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
© 2012 KBIC International Limited


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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