AudioStretch vs Super Slow Downer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AudioStretch
This tool allows musicians to slow down, loop, and transpose music from audio or video files. It's designed to help users learn songs by ear, experiment with sounds, or simply explore their music library in new ways.
- Import audio or video files
- Capture video with phone camera
- Change speed without changing pitch
- Transpose any music
- Loop difficult sections
- LiveScrub waveform listening
- Keyboard/spectrum transcription aid
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Before you buy AudioStretch, consider first downloading AudioStretch Lite for FREE. Apart from some feature limitations, it's the same as the full (paid) version. The Lite version is a great way to see whether AudioStretch works well for you. As a musician one of the most helpful tools you can have is the ability to slow-down, loop or auto-transpose the notes for a piece of music you are trying to learn. AudioStretch is the world’s first audio and video transcription tool. Now you can manipulate the pitch, speed and transcribe your tunes from both audio and video files; or by using your phone’s camera you can capture video directly into AudioStretch and transcribe it! FEATURES INCLUDE: • Import audio or video files • Capture video with your phone camera for transcription • Change the speed of files without changing the pitch • Listen to the individual notes as you drag the waveform • Play audio and video at zero speed • Transpose any music • Loop difficult to learn sections With AudioStretch you get all of this in an incredibly responsive and easy-to-use app. Ideal for transcription, learning songs by ear, crazy sonic experimentation, or just listening to your music library in a new way. DETAILED FEATURES: • Load songs from your Music Library. (Note: songs from Apple Music have DRM and therefore cannot be loaded). • Document Picker import/export option supports iCloud, OneDrive, and more • Open Dropbox files and email attachments via "Open In" • LiveScrub™ : listen as you drag/hold the waveform • Speed range -10x to 10x, including zero speed! • Instant freeze to zero speed by double-tapping on speed display • Pitch shift range +/- 36 semitones • Keyboard/spectrum feature for transcription • Super-fine speed/pitch adjustment via drag left-right on speed/pitch display • Flexible looping feature • No ads or in-app purchases If you run into any problems with AudioStretch or AudioStretch Lite, please contact support@audiostretch.com
Super Slow Downer
This music app lets you adjust playback speed without altering pitch, perfect for learning songs. You can loop sections, speed up or slow down tracks from 25% to 200%, and even change the key.
- Adjust playback speed (25%-200%)
- Maintain original pitch
- Loop song sections
- Change song key
- Load local music files
- Supports iCloud Drive
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Super Slow Downer allows you to slow the play of music while maintaining pitch. Super Slow Downer allows you to play songs in a loop at a slower speed. It's great for musicians trying to learn new songs. You can select any part of a song to repeat at normal speed. You can also slow the song down or even speed it up by changing the speed between 25% (0.25X) and 200% (2X speed). The pitch remains the same as you change speed. As an option, you can separately adjust the pitch in addition to the speed. If you want to change the key the song is in, you can do so in the app. Setup loops by touching the "loop" button during playback. You can load music files that are saved on your iCloud Drive or select music files on your device's music library (owned music appearing in the Music app). This app does not support Apple Music streaming music or Spotify streaming music. Super Slow Downer is a great app musicians, music transcribers or dancers wanting a tool to make their practices better.
Screenshots
Verdict
The clearest difference is price: Super Slow Downer at $0.99 against AudioStretch's $9.99. AudioStretch's advantage is review sentiment (89% vs 50%) and chart position (#53 vs unranked). On rating, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
AudioStretch costs $9.99 and Super Slow Downer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for AudioStretch against 4.5 for Super Slow Downer. That said, the two scores are not equally well evidenced: AudioStretch has 223 ratings behind it against 26, so its average is the more settled of the two. Written reviews are what separate them: 89% of AudioStretch's written reviews are positive against 50% of Super Slow Downer's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.
| Parameter | AudioStretch | Super Slow Downer |
|---|---|---|
| Price | $9.99 | $0.99 — better |
| Rating | 4.4 (223 ratings) | 4.5 (26 ratings) — better |
| Positive reviews | 88.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 223 — better | 26 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #53 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Cognosonic Pte Ltd | Thomas Backes |
Customer experience
AudioStretch
Super Slow Downer
In-app purchases
AudioStretch
No in-app purchases
Super Slow Downer
No in-app purchases
Questions
Is AudioStretch free?
Is Super Slow Downer free?
Which has better reviews, AudioStretch or Super Slow Downer?
Do AudioStretch or Super Slow Downer have ads?
Which is updated more often, AudioStretch or Super Slow Downer?
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