# TTJ Music Speed Changer

> Audio speed adjustment tool with Dropbox integration and pitch preservation. (iPhone/iPad app by Yoshihiko Tsukamoto.)

- Source: https://appshunter.io/ios/app/ttj-music-speed-changer/id984767848 (this page in markdown: same URL + `.md`)
- Developer: [Yoshihiko Tsukamoto](https://appshunter.io/developer/595184567)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Rating: 1.67/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 16 MB
- Languages: English
- Released: 2015-04-28
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ttj-music-speed-changer/id984767848/reviews.md

## What is TTJ Music Speed Changer?

Change your music's tempo without changing pitch. This version download music file from Dropbox. Easy user interface. You need to install Dropbox.
All functions are available free of charge. You can remove Ad's by In apps purchase. 



Features:
Read sound files from Dropbox
Change speed from 20% to 300% 
Tap and mark position of the music.
Loop play
Scroll waveform.
Expand waveform.

## Key features

- Change tempo without altering pitch
- Import music files from Dropbox
- Adjust speed from 20% to 300%
- Tap and mark music positions
- Loop playback
- Scroll and expand waveform

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove AD | $1.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/ttj-music-speed-changer/id984767848/reviews.md

### 1/5 — Could be good but crashes

*2018-08-01*

I really like what you could accomplish with this app, but you can't because it crashes immediately

### 1/5 — Garbage

*2017-01-17*

This app is absolute garbage.

## Frequently asked questions about TTJ Music Speed Changer

### What is TTJ Music Speed Changer?

TTJ Music Speed Changer is a utility application that allows you to change the tempo of audio files without affecting their pitch. It can read sound files from Dropbox and offers various playback control features.

### Does TTJ Music Speed Changer require a Dropbox account?

Yes, to use the feature of reading sound files from Dropbox, you will need to have Dropbox installed and linked to the application.

### What is the supported speed range for TTJ Music Speed Changer?

You can change the speed of your music files from a minimum of 20% to a maximum of 300% of the original tempo.

### Can I remove ads from TTJ Music Speed Changer?

The application is free to use with all functions available. While the description mentions the possibility to remove ads via in-app purchase, the provided data indicates 'free' as the monetization model and 'false' for in-app purchases, suggesting ads may be present.

### What devices is TTJ Music Speed Changer compatible with?

TTJ Music Speed Changer is designed for iOS devices, specifically compatible with iPhone, iPad, and iPod.

### How often is TTJ Music Speed Changer updated?

The application was last updated on April 28, 2015, to version 1.0. There have been no updates since its initial release date.

### What is the age rating for TTJ Music Speed Changer?

TTJ Music Speed Changer has an age rating of 4+, making it suitable for a wide range of users.

### What do users think of TTJ Music Speed Changer?

Based on the provided data, TTJ Music Speed Changer has a rating of 1.7 stars from 3 ratings, indicating a generally negative user sentiment.

## Version history (last 1 release)

### 1.0 — 2015-04-28

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

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## More apps by Yoshihiko Tsukamoto

- [TTJ Metronome](https://appshunter.io/ios/app/ttj-metronome/id595184564)
- [Learner's Metronome Recorder](https://appshunter.io/ios/app/learners-metronome-recorder/id965788882)
- [TTJ Freehand](https://appshunter.io/ios/app/ttj-freehand/id993436689)

All apps by Yoshihiko Tsukamoto: https://appshunter.io/developer/595184567

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*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.*