Quick verdict
- What it is
- Store information collected; independent summary not yet available.
- At a glance
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- Free to download
- In-app purchases
Categories and search queries
Official categories
- Music
- Education
AppCorpus categories
Key functions
| Function | Availability | Access | Scope | Evidence |
|---|---|---|---|---|
| Family Sharing | Yes | Unknown | App Store | Store published |
| Free app | Yes | Free | — | Store published |
| In-app purchases | Yes | Limited free | — | Store published |
Screens
App Store
8 store screenshots
Pricing & paywalls
App Store
- Free to download
- In-app purchases
Ratings & reviews
App Store
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3/5Very unprofessional customer service
I have loved this app for years. Have actually recommended it to many people, but want other people to know that there may a security flaw, which the VERY unprofessional customer service rep tried to tell me was user error. Last night, someone accessed my phone, using this app to play the last song I was listening to. They edited the song, and even named a loop, misspelling the word “experiment.” I thought it would be good to let the company know, but according to them, their app cannot be hacked. Maybe they should let the government use their spectacular coding skills, because even the Pentagon gets hacked. Yes, I am not using the latest iOS, as I’ve been advised to avoid it until Apple gets it right. That said, I’m fairly sure ASD was the point of entry. This a their exact response, lack of proper capitalization, formatting, and all: “forget that it's not possible to hack your phone using ASD whatever happened is either a bug in iOS 12 or just some user error I would guess the later”
OneEyedCat · 31 Jul 2026
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5/5Horrible app
This is just in general terrible, I’m trying to memorize an audio and it doesn’t let me listen to the full thing. I put in a 12 second video and it only let me do 2 seconds worth, I gave this five stars so it would be seen, don’t waste your storage on this. And the version that costs money is just in general, way too expensive. I have had so many problems with this app, I tried to import a full minute audio and it only let me listen to the first 12 seconds. I have no idea how to fix this and the only way is most likely to buy the overly expensive app, I do not recommend, thanks for reading.
Abi4Him · 31 Jul 2026
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5/5A great app for what I need
This is a great application for what I need. I'm a professional solo musician and backing tracks are a big part of my show. Being able to import audio files to edit the time the tempo and the key ,and then export them to my applications on my tablet where I can play them live during my show . It works perfectly for me even with key changes five or six steps above or below for that reason I give it five stars. I also use AudioStretch which is a similar application but I like this one better . Want to thank Ronimusic for this application and another very useful application that I use a lot Sweet MIDI
My Mark Anthony · 31 Jul 2026
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3/5Should I have just bought the full app in the App Store?
I upgraded from the lite version to the full version in the app. It worked fine. However, the app i have is still called ASD Lite. Plus the App Store says i have not purchased the full version and still wants me to pay 15$ to get it. Should i have just bought it from the App Store? If so, why do you even offer an in app upgrade if the full app is in the App Store?
JazzCat999 · 31 Jul 2026
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5/5So far, so great!
Just got this to help me transcribe a tune and it is just what I needed! I had a paid version on an older computer. I am taking delivery on a new computer soon - any discount available if I want to install it on there, since I have already bought it once? I know it was a long time ago, just checking. Thanks
A guy wearing a helmet · 31 Jul 2026
Privacy & accessibility
App Store
Privacy
- Data Not Collected Developer declared
Accessibility
No accessibility labels collected yet.
Versions
App Store
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6.6.6
Some more minor changes related to playlist handling
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6.6.7
New - Added a "Next Song" button in the player view. Bug fix - Fixed a problem related to searching when using a BlueTooth keyboard.
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6.6.8
Bug fix - Fixed a problem related to the "Speech" quality setting.
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6.6.9
As of iOS 15.4, only Apple Music content owned by the user is allowed to be played at different speeds than normal speed. It is no longer technically possible for apps to change the playback speed of streaming Apple Music content. This change does NOT affect any other type of audio content that Amazing Slow Downer can play back and does not affect devices running on iOS 15.3.1 or lower.
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6.7.0
Bug fix - Fixed a problem related to the behaviour of the speed slider when playing "Apple Music" songs
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6.7.1
New - Added a switch "Stop After Last Song" in the "Continuous Playback" settings view New - Added a "Preserve Fine Tuning" setting in the Player view -> Settings Change - iOS 15.5 restores the ability to change the playback speed of streaming Apple Music songs
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6.7.2
Some minor changes related to iOS 15.5
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6.7.3
According to Spotify, third party apps will not any longer have access to streaming Spotify content in a way that works for slowing down audio. This will affect Amazing Slow Downer starting September 1, 2022. We will do what we can to make Spotify reconsider this decision. This change does NOT affect any other type of audio content that Amazing Slow Downer can play back.
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6.7.4
According to Spotify, third party apps will not any longer have access to streaming Spotify content in a way that works for slowing down audio. This will affect Amazing Slow Downer starting September 1, 2022. We will do what we can to make Spotify reconsider this decision. This change does NOT affect any other type of audio content that Amazing Slow Downer can play back.
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6.7.5
According to Spotify, third party apps will not any longer have access to streaming Spotify content in a way that works for slowing down audio. This will affect Amazing Slow Downer starting September 1, 2022. We will do what we can to make Spotify reconsider this decision. This change does NOT affect any other type of audio content that Amazing Slow Downer can play back.
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6.7.7
According to Spotify, third party apps will not any longer have access to streaming Spotify content in a way that works for slowing down audio. This will affect Amazing Slow Downer starting September 1, 2022. We will do what we can to make Spotify reconsider this decision. This change does NOT affect any other type of audio content that Amazing Slow Downer can play back.
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6.7.8
New - Added another BlueTooth remote command -> "Play From Loop Start" New - Check for unplayable MPEG-DASH files (files from YouTube converters with wrong mp3 file extension) Change - Somewhat improved voice over support Bug fix - Saved loops were lost when renaming a file Workaround for a change in iOS 16.4.1 related to continuous playback of Apple Music songs
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6.8.2
Fix for an issue with iOS 16.4 and later that causes some (very few) songs to be unplayable.
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6.8.3
Partial support for Deezer streaming audio - 30 second long preview excerpts only.
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6.8.4
Made it possible to send exported audio using SMS Improved sound quality for the "High Quality" -> "Audio Processing" setting Fixed a problem related to "Apple Music" playback if running on iOS 17.2
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6.8.8
Change - Improved "Voice Over" support Change - Removed the 30 second long preview of Deezer audio streaming Bug fix - Fixed a problem where certain playlist files didn't play when the app was in background Bug fix - Fixed a problem related to iPad "Split View" mode
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6.8.9
Change - Importing of video files no longer converts audio into mono
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6.9.1
Full support for iOS 18 Bug fix - Fixed an issue where some playlist files failed to play
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6.9.2
Maintenance update
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6.9.4
Some changes needed for a smooth transition to the upcoming release of iOS 26
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6.9.5
Fixed a problem with the "In app purchase" feature.
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6.9.6
Workaround for a problem with "Apple Music" playback in iOS 26.
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6.9.8
Minor bug fix related to selecting MIDI in/out devices Fixed a problem related to sharing files from the iOS "Voice Memos" app New setting for the behavior of the "Import Song" buttons
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6.9.9
Bug fix - Importing of video files was broken
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7.0.0
· 24 Nov 2025
Bug fix - Support for iOS 12 was broken.
Alternatives
- Audipo - Audio Speed Changer - — Same category + similar ratings
Availability by market
- US
Data quality & evidence
- Page completeness
- Live store listing
- Last verified
- 31 Jul 2026
- Sources
- App Store
- Independent summary has not been published yet.