# Tempo Changer

> Adjust music playback speed from your iTunes library. (iPhone/iPad app by KBIC International Ltd.)

- Source: https://appshunter.io/ios/app/tempo-changer/id518522093 (this page in markdown: same URL + `.md`)
- Developer: [KBIC International Ltd](https://appshunter.io/developer/505094094)
- Category: Music, Entertainment
- Price: Free
- Rating: 1.50/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 1 MB
- Languages: English, Japanese
- Released: 2012-04-20
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/tempo-changer/id518522093/reviews.md

## What is Tempo Changer?

The app is good for performers who want a faster or slower version of a music piece. 

And for others, it can be HILARIOUS to hear your favorite song in a different tempo! 

Two simple steps in the app: 
1. Select a song from your iTunes library 
2. After the song is processed, you can then change the speed of the song with the slider. 

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

## Key features

- Change music playback speed
- Select songs from iTunes
- Adjust speed with a slider
- ZTX LE Time Stretch/Pitch Shift technology

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/tempo-changer/id518522093/reviews.md

### 1/5 — So disappointed

*2018-07-01, version 1.5*

I was hoping this would work but each time you pick s song it says you can’t use it. Save you .99. Ughh 🙅🏼‍♀️no way buy it!!

### 1/5 — Worthless

*2013-08-09, version 1.3*

Only 1 song at a time:( boo

### 3/5 — Almost there

*2013-02-02, version 1.3*

It's ok. The sound gets more and more distorted as you decrease the tempo.

### 5/5 — Please

*2012-05-27, version 1.1*

Add option to change point in song because i can't rewind

## Frequently asked questions about Tempo Changer

### What is Tempo Changer used for?

Tempo Changer allows you to adjust the playback speed of songs from your iTunes library. You can make music faster or slower using a simple slider, which is useful for musicians practicing or for creating humorous audio effects.

### How do I use Tempo Changer?

The app works in two simple steps. First, select a song from your iTunes library. Second, after the song is processed, use the slider to change its speed.

### Does Tempo Changer support songs not in my iTunes library?

Based on the description, Tempo Changer specifically integrates with your iTunes library. It does not mention support for music files from other sources or cloud storage.

### What technology does Tempo Changer use?

Tempo Changer utilizes ZTX LE Time Stretch/Pitch Shift technology, which is licensed from Zynaptiq GmbH. This technology is designed for manipulating audio tempo and pitch.

### Is Tempo Changer suitable for all ages?

Tempo Changer has an age rating of 4+, indicating it is suitable for children and general audiences. The app's functionality is straightforward and does not contain mature content.

### How often is Tempo Changer updated?

The latest version of Tempo Changer is 1.5, which was last updated on October 9, 2017. This suggests infrequent updates in recent years.

### What is the user reception of Tempo Changer?

Tempo Changer has a rating of 1.5 stars from 4 ratings. This indicates a generally negative user sentiment based on the limited available feedback.

### Does Tempo Changer have ads?

The provided data does not specify if Tempo Changer contains advertisements. However, given its paid monetization model and lack of an 'hasAds' flag, it is likely ad-free.

## Version history (last 1 release)

### 1.5 — 2017-10-09

This app has been updated by Apple to display the Apple Watch app icon.

Update for iOS 11
Faster file processing

## Apps similar to Tempo Changer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [MasterQ](https://appshunter.io/ios/app/masterq/id1485124580) | 5.0 (4) | Free | Music |
| [Four States Fox Sports Radio](https://appshunter.io/ios/app/four-states-fox-sports-radio/id1489358780) | 5.0 (1) | Free | Music |
| [无损音乐播放器](https://appshunter.io/ios/app/id1483316840) | 3.0 (2) | $12.99 | Music |
| [FM Radio - Local City &Country](https://appshunter.io/ios/app/fm-radio-local-city-and-country/id1489584840) | 4.3 (6) | Free | Music |
| [Setlist Carrot - Setlist.fm](https://appshunter.io/ios/app/setlist-carrot-setlistfm/id1481784500) | 3.9 (15) | Free | Music |
| [WEBR - The Breeze](https://appshunter.io/ios/app/webr-the-breeze/id1494166960) | 4.9 (79) | Free | Music |

## More apps by KBIC International Ltd

- [Music Factory -](https://appshunter.io/ios/app/music-factory/id509978677)
- [Music Factory Lite -](https://appshunter.io/ios/app/music-factory-lite/id510346984)
- [Vocal Remover](https://appshunter.io/ios/app/vocal-remover/id518520239)
- [Vocal Remover Lite](https://appshunter.io/ios/app/vocal-remover-lite/id518520396)
- [Pitch Changer](https://appshunter.io/ios/app/pitch-changer/id518521577)
- [Pitch Changer Lite](https://appshunter.io/ios/app/pitch-changer-lite/id518521836)

All apps by KBIC International Ltd: https://appshunter.io/developer/505094094

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*