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Amazing Slow Downer
Limhamn, Sweden
What it is
Amazing Slow Downer changes music playback speed without changing pitch, supporting musicians who learn songs and techniques through repeated listening. Windows and Mac versions adjust speed from 20% to 200% and change pitch by semitones or cents. Windows handles MP3, Wave, Windows Media Audio, Ogg, FLAC, and AAC/M4A files in real time. iOS and Android versions range from 25% to 200%, support seamless playback loops, and can change tuning or musical key. Computer editions accept USB HID and MIDI remote controls; the iOS page also describes Bluetooth/MIDI control. Mac and Windows do not play Spotify or Apple Music, and DRM-protected iTunes M4P files are unsupported. Trial software is offered for Windows and Mac, while mobile pages link to lite versions. Prices are $9.95, paid once for Android, $14.95, paid once for iOS, and $39.95, paid once for Mac/Windows. Licenses are single-user and separate by platform.
For and against
For
- Slows playback without changing pitch
- Windows supports multiple audio formats
- Mobile versions provide seamless loops
- Pitch and tuning controls available
- Free trials or lite versions offered
Against
- Spotify and Apple Music unsupported on computers
- DRM-protected iTunes M4P files unsupported
- Separate license required for each platform
- Older computer purchases may incur $25 upgrade fee
The verdict
Amazing Slow Downer offers platform-specific speed, pitch, looping, and remote-control tools for music practice. Check file-source limitations and the separate pricing for each platform before choosing an edition.
Who it suits
It suits musicians studying recordings by slowing passages, looping sections, or changing musical key. Separate versions cover Android, iOS, macOS, and Windows users.
Plans and prices
Amazing Slow Downer — Android
Separate licenses required for each platform · Free support and updates for at least 7 years
Read 9 Oct 2026 · ronimusic.com
Amazing Slow Downer — iOS (iPhone/iPad)
Separate licenses required for each platform · Free support and updates for at least 7 years
Read 9 Oct 2026 · ronimusic.com
Amazing Slow Downer — Mac/Windows
Separate licenses required for each platform · Free support and updates for at least 7 years
Read 9 Oct 2026 · ronimusic.com
On the record
- Android requirements
- The Android version requires Android 5.0 or later and a processor supporting NEON; the maker notes some older devices will not work.ronimusic.com · read 9 Oct 2026
- Audio formats
- The Windows version supports MP3, Wave, Windows Media Audio, Ogg, FLAC, and AAC/M4A files in real time.ronimusic.com · read 9 Oct 2026
- Mac requirements
- The Mac version requires macOS 10.13 or later and has native Apple Silicon support.ronimusic.com · read 9 Oct 2026
- Mobile playback
- The iOS and Android versions can change speed from 25% to 200% and set seamless loops during playback.ronimusic.com · read 9 Oct 2026
- Mobile tuning
- The iOS and Android versions can change the tuning or musical key.ronimusic.com · read 9 Oct 2026
- Purpose
- Amazing Slow Downer slows music without changing its pitch for musicians who want to learn songs and techniques by repeated listening.ronimusic.com · read 9 Oct 2026
- Remote controls
- The computer version supports remote control via USB HID devices and MIDI controllers, while the iOS page also describes Bluetooth/MIDI remote control.ronimusic.com · read 9 Oct 2026
- Speed and pitch
- The Windows and Mac versions adjust playback speed from 20% to 200% and can change pitch by semitones or cents.ronimusic.com · read 9 Oct 2026
- Streaming limitation
- The Mac and Windows versions do not support Spotify or Apple Music playback, and DRM-protected iTunes M4P files are unsupported.ronimusic.com · read 9 Oct 2026
- Support and updates
- The listed purchase price includes free email support and free updates for a minimum of seven years.ronimusic.com · read 9 Oct 2026
- Trial
- The maker offers free trial software for Windows and Mac; the iOS and Android pages also link to free lite versions.ronimusic.com · read 9 Oct 2026
- Upgrade limit
- Customers who bought the computer version before January 1, 2019 are charged $25 US to upgrade to the current version.ronimusic.com · read 9 Oct 2026
- Windows requirements
- The Windows version is listed as compatible with Windows 7, 8, 10, and 11, including 64-bit editions.ronimusic.com · read 9 Oct 2026
