Amazing Slow Downer

Amazing Slow Downer

by Roni Music

459 ratings
360 reviews
$14.99

Details

  • Released
  • Updated
  • March 27, 2009
  • October 14, 2026

Features

Amazing Slow Downer screenshot #1 for iPhone
Amazing Slow Downer screenshot #2 for iPhone
Amazing Slow Downer screenshot #3 for iPhone
Amazing Slow Downer screenshot #4 for iPhone
iphone
ipad
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About

This app allows musicians to adjust the playback speed of music without altering its pitch. It supports looping sections, changing tuning and key, and even speeding up audio. Ideal for learning songs, techniques, or improving transcription skills.

βœ“Adjust playback speed (25%-200%)
βœ“Maintain pitch while changing speed
βœ“Seamless looping
βœ“Change tuning and musical key
βœ“Supports Apple Music streaming
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What users say

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+1

What's New in Amazing Slow Downer

7.1.0

October 14, 2026

New - Support for iPhone Duo New - Full support for iOS 27 New - Two new MIDI remote commands - Set Loop Start/End New - Support for the new Apple 'apac' audio file format Change - Now requires iOS 15 Bug fix - Minor fix related to MPEG-DASH files

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Charts

Top Paid

πŸ“ŠΒ 16

Music

The app has maintained its positionΒ atΒ 16Β recently.

Last updated on October 14, 2026.

Top Paid

πŸ“‰Β 140-7

Global

This app dropped -7 positions in Global chart.

Last updated on October 14, 2026.

User reviews

Impossible de renommer un morceau pourquoi

Impossible de renommer un morceau pourquoi??

Was perfect.

This app is almost perfect. It is great for learning songs to perfection. My only gripe is that the iCloud sync no longer works between devices. The developer verified the problem, but has not fixed the issue. They seem to blame Apple without taking any responsibility for fixing the issue.

Very disappointing

I once bought this application, but I could never use it. So I continued using the light version. When I switched to a new iPhone, only half of my music was transferred. I contacted Roni, but got no answer, so I have to keep my old iPhone so that each time a file is missing, I can retrieve it to export it to my new iPhone. Really painful. As I use it semi professionally, I decided, to buy again the paying version. Surprisingly, it doesn’t access the files (hundreds of them) in the Lite version. I agree to pay and would even pay happily every year, but paying to have something unusable? That’s a little to much.
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Response from developer

The regular and the lite version are two different according to Apple. So the two apps know nothing about each other. What do you mean with "something unusable"? Please contact Roni Music from within the app, we always respond the same day.

Great app! No iCloud integration

It's a very good app. The problem is that if you create your loops on one device, you cannot see them on any other device. So, it's double work if you start learning a song on your iPhone and, when you get home, want to use your iPad. It's a pity.

Response from developer

Loops and playlists should sync between iOS devices provided you haven't disabled that feature.

No more Google Drive access?

Great app and amazingly helpful for learning parts, but it appears I can no longer import songs from Google Drive? I was disappointed when Spotify access was removed, but I understand why. However, losing both has made the app less convenient to use.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Playback freezing or not working as expected

Bug

Inability to access purchased songs from iTunes library

Bug

Connectivity issues when trying to use with Spotify

Bug
✨

Requested Features

5 requests

Add ability to record and import voice memos

Feature

Improve library management and organization

Feature

Implement Audiobus support for looping in other apps

Feature

Add more precise speed and pitch adjustment controls

Feature

Provide option to display waveform for better visualization

Feature

FAQ

What does Amazing Slow Downer do?

Amazing Slow Downer allows you to play any piece of music at a slower tempo without changing its pitch. You can also speed up music and set seamless loops for focused practice. It's designed to help musicians learn songs and techniques more effectively.

What are the key features of this app?

Key features include adjusting playback speed from 25% to 200%, maintaining pitch while changing speed, setting up seamless loops, and changing the tuning or musical key of the audio. It also supports streaming Apple Music.

How much does Amazing Slow Downer cost?

The application is a paid app. There are no in-app purchases or advertisements mentioned in the description, indicating a one-time purchase for the full functionality.

What kind of audio content can I use with this app?

You can use various types of audio content, including Apple Music streaming. However, please note that certain functions like pitch change and equalizer are not available for Apple Music songs. The app will no longer support Spotify streaming for its core functions due to changes by Spotify.

Who would benefit from using Amazing Slow Downer?

This app is ideal for musicians who want to learn new songs or techniques by listening repeatedly, transcribers who need to analyze music in detail, and dancers who practice routines. Anyone looking to improve their musical skills through focused listening will find it beneficial.