iPhone Screenshots


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

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

What's New

Version 1.6

Update for iOS 11
Faster file processing

Customer Reviews

1.9 out of 5

29 Ratings

29 Ratings

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! 👍🏼

I think it's great!


Alright, I'll take one star off because when I load a song, I always need to press the home button and then come back to the app. Also, it's true that removing the vocal isn't complete. But to be honest, having this app at that price is fairly reasonable to me. Everything else is working very well, and I love it!

Playback Only- No save feature....

Trek Lurker

This app and its paid version are impressive on non-DRM music with vocal tracks primarily in the center channel of the original stereo mix.

Unfortunately, you can't currently save the resulting output to a file for further processing or use- it's more of a novelty in its current incarnation.

Hoping the developer will read this and update to address this issue!


KBIC International Limited
1.1 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
© 2012 KBIC International Limited
In-App Purchases
  1. Full Version $2.99


  • Family Sharing

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

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