Comparison

AudioStretch Lite vs Polygonome

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AudioStretch Lite

This app allows musicians to slow down, loop, and transpose music from audio or video files. It also enables capturing video directly with your phone's camera for transcription. Ideal for learning songs by ear or experimenting with sound.

Highlights
  • Slow down audio/video without pitch change
  • Loop difficult sections
  • Transpose music notes
  • Import audio/video files
  • Capture video with phone camera
  • Live waveform scrubbing
Features
Read full description

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. Note: This is the LITE edition of AudioStretch, which has a few feature limitations. To get all the features, without the limitations, consider buying the Full version. LIMITATIONS OF LITE VERSION: • Max song duration 3 minutes (full version 3 hours) • Speed range from -1.5x to 1.5x (full version -10x to +10x) • Pitch shift +/- 3 semitones (full version +/- 36 semitones) DETAILED FEATURES: • Load songs from your Music Library • 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 • Instant freeze to zero speed by double-tapping on speed display • 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

About

Polygonome

This app visualizes polyrhythms using interactive polygons, simplifying complex rhythmic patterns. It automatically calculates beat subdivisions, making it an excellent tool for musicians, especially those studying traditions like Carnatic Music.

Highlights
  • Polygon visualization for polyrhythms
  • Automatic beat subdivision calculation
  • Interactive polygon controls
  • Supports complex rhythmic patterns
  • Ideal for Carnatic Music students
Features
Read full description

Polygonome is metronome that uses polygons to present polyrhythms in a understandable way. Automatic-per beat subdivision calculation makes it easy to learn complicated patterns such as 7 / 4 / 3 or 9 / 5 / 4. Drag of tap polygons to activate them and press play! Great tool for people studying Carnatic Music tradition.

Screenshots

AudioStretch Lite4 screens
Polygonome1 screens

Verdict

The call

The clearest difference is rating: Polygonome at 4.8 against AudioStretch Lite's 4.0. Polygonome also leads on review sentiment (100% vs 73%) and iOS requirement (10.3 vs 12.0). AudioStretch Lite's advantage is ratings volume (623 vs 8). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Polygonome holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: AudioStretch Lite has 623 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 73% of AudioStretch Lite's written reviews are positive against 100% of Polygonome's.

UpkeepUpdate frequency

AudioStretch Lite ships an update every 3 months, Polygonome every 4 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
AudioStretch Lite versus Polygonome: the parameters behind the verdict, then further details
ParameterAudioStretch LitePolygonome
PriceFreeFree
Rating4.0 (623 ratings)4.8 (8 ratings) — better
Positive reviews72.9% of reviews100.0% of reviews — better
Number of ratings623 — better8
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.010.3 — better
Further details — not scored
Size18 MB37 MB
Age rating4+4+
DeveloperCognosonic Pte LtdArturs Krumins

Customer experience

AudioStretch Lite

All ratings617 ratings
Positive75.0%
Neutral6.5%
Negative18.5%
Written reviews255 reviews
Positive72.9%
Neutral7.5%
Negative19.6%

Polygonome

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

AudioStretch Lite

Reported bugs

3 issues
  • Audio stops working after a while
  • Video disappears when trying to screen record
  • Crashes when trying to export or share content

Requested features

3 requests
  • Add more editing tools and effects
  • Improve loop management and save options
  • Implement night mode and other visual customizations

Polygonome

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

AudioStretch Lite

No in-app purchases

None

Polygonome

No in-app purchases

Questions

Is AudioStretch Lite free?
AudioStretch Lite is free to download, with no in-app purchases.
Is Polygonome free?
Polygonome is free to download, with no in-app purchases.
Which has better reviews, AudioStretch Lite or Polygonome?
Polygonome is rated higher. AudioStretch Lite averages 4.0 out of 5 from 623 ratings, while Polygonome averages 4.8 from 8 ratings.
Do AudioStretch Lite or Polygonome have ads?
Neither AudioStretch Lite nor Polygonome shows ads.
Which is updated more often, AudioStretch Lite or Polygonome?
AudioStretch Lite ships an update every 3 months, and Polygonome every 4 months. Most recently, AudioStretch Lite was updated on November 10, 2026 and Polygonome on November 6, 2026.

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