Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app Music Factory Free - Change key, change tempo and remove vocal by KBIC International Ltd, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

Music Factory Free - Change key, change tempo and remove vocal

By KBIC International Ltd

Open iTunes to buy and download apps.


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.

Dirac Time Stretch/Pitch Shift technology is licensed from the DSP Dimension / Stephan M. Bernsee.

This is a free version of Music Factory - Change key, change tempo and remove vocal.

What's New in Version 1.5

Seek support added - User can now go to any part of the song with the new slider

User interface optimized for iOS 7

Restore button added for users who have bought the in-app purchase to restore their purchase onto their new phones

iPhone Screenshot

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4

Customer Reviews

It's awesome!

Well you bad reviewers obviously don't realize that they took out the vocal track. Most singers use harmony and that's why you still hear the voice. So that works nicely! Also, I like how you can speed up or slow down the song while you can change the pitch! Although, I wish that you guys could've made just one big app with everything in it rather than one app just for pitch and the other app with everything. Losin money 😕. But overall a really good app I would recommend it! 👍🏼


That was quick. This app stayed on my phone for about a minute and a half.

Removing vocals didn't work on one song I tried and worked pretty well on another, but also removed some of the music.

But the app limits you to 30 seconds per song, making it a useless trial version. Terrible.

This is crap.

Never buy this app. Its says remove vocals but it doesnt work. Without buying the full version you only get to hear 30 seconds of the song. Its lame and takes a while to load the song.

Music Factory Free - Change key, change tempo and remove vocal
View In iTunes
  • Free
  • Category: Music
  • Updated:
  • Version: 1.5
  • Size: 0.3 MB
  • Languages: English, Japanese
  • Seller:

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Full Version$2.99