Comparison

Polyrhythm vs Stellarvox

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

Head to head
About

Polyrhythm

Master complex rhythms with this intuitive trainer. Visualize and practice polyrhythms by toggling beats, adjusting volumes, and setting tempo. Offers a variety of sounds for a personalized practice experience.

Highlights
  • Create and visualize polyrhythms
  • Toggle individual beats
  • Variety of sound options
  • Independent rhythm volume control
  • TAP tempo setting
Features
Currently charting
Read full description

A simple and intuitive rhythm trainer to help you master complex polyrhythms. Core Features: - Create and visualize a wide range of polyrhythms - Toggle individual beats on or off to practice syncopation - Choose from a variety of sounds - Adjust the volume of the top and bottom rhythms independently - Set the tempo using the TAP button

About

Stellarvox

Design immersive ambient soundscapes with a hybrid reverb and artificial space designer. Create lush textures, deep spaces, and whispering backgrounds for electronic, experimental, and sound design projects. Offers intuitive controls and inspiring presets for quick, high-quality results.

Highlights
  • Hybrid reverb with artificial space designer
  • Algorithmic reflections tail processing
  • Dynamic timbre changes over time
  • Geometry and dimension control
  • Factory presets and random feature
  • MIDI learn support
  • Standalone and AUv3 module
Features
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Hybrid reverb with an artificial space designer, combining it with algorithmic reflections tail processing, is ideal to creating immersive ambience of deep spaces, lush atmospheric textures or stunning whispering backgrounds in your ambient, electronic, experimental and sound design projects. Unlike traditional algorithmic reverbs, Stellarvox constructs a complex model of a vast resonant sound spaces with choice of geometry, dimensions and tonal structure of the space, along with a unique feature that dynamically change the timbre of reflections over the reverberation time. The second algorithmic reverb allows you to prolong and blur reflections, adding extra dimensions to the sound space. Easy-to-use controls on a single screen, along with optimally designed parameters that always give great results, make insignificant the peculiarity of that kind of reverbs, when the model creates with a little delay after changing it. Factory presets and the random feature will give you a starting point of inspiration and allow you to get a quick result where you need just to slightly tweak the parameters to align with your idea. This application is great for ambient projects, it can create mesmerizing atmosphere from single infrequent sounds of various instruments, or giving a beautiful and deep backgrounds to sharp sequences in electronics, as well as for any experimental projects that require unusual, deep and rich sound ambience. Stellarvox is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). Stellarvox works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, with supports Audiobus host app. On MacOS, Stellarvox can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. Stellarvox has a built-in detailed description of all parameters also available as PDF file on the application site. Sound demo: https://www.youtube.com/watch?v=TEtZfvLtJy8 https://www.youtube.com/watch?v=FqCYa1tp2Qw You can find more information on Stellarvox and other audio apps at: https://motion-soundscape.blogspot.com

Screenshots

Polyrhythm4 screens
Stellarvox3 screens

Verdict

The call

The clearest difference is price: Polyrhythm at $4.99 against Stellarvox's $11.99. Polyrhythm also leads on chart position (#123 vs unranked) and ratings volume (64 vs 11). Stellarvox's advantage is update cadence (every 5 months vs every 31 months). On rating, review sentiment, 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

Polyrhythm costs $4.99 and Stellarvox $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Polyrhythm against 5.0 for Stellarvox. That said, the two scores are not equally well evidenced: Polyrhythm has 64 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 95% of Polyrhythm's written reviews are positive against 100% of Stellarvox's.

UpkeepUpdate frequency

Polyrhythm ships an update every 31 months, Stellarvox every 5 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 7 level
Polyrhythm versus Stellarvox: the parameters behind the verdict, then further details
ParameterPolyrhythmStellarvox
Price$4.99 — better$11.99
Rating4.9 (64 ratings)5.0 (11 ratings) — better
Positive reviews95.0% of reviews100.0% of reviews — better
Number of ratings64 — better11
Update frequencyEvery 31 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#123 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size1 MB4 MB
Age rating4+4+
DeveloperAutumn Rock Software DevelopmentIgor Vasiliev

Customer experience

Polyrhythm

All ratings64 ratings
Positive96.9%
Neutral1.6%
Negative1.6%
Written reviews20 reviews
Positive95.0%
Neutral0.0%
Negative5.0%

Stellarvox

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Polyrhythm

No in-app purchases

None

Stellarvox

No in-app purchases

Questions

Is Polyrhythm free?
Polyrhythm costs $4.99, with no in-app purchases.
Is Stellarvox free?
Stellarvox costs $11.99, with no in-app purchases.
Which has better reviews, Polyrhythm or Stellarvox?
Stellarvox is rated higher. Polyrhythm averages 4.9 out of 5 from 64 ratings, while Stellarvox averages 5.0 from 11 ratings.
Do Polyrhythm or Stellarvox have ads?
Neither Polyrhythm nor Stellarvox shows ads.
Which is updated more often, Polyrhythm or Stellarvox?
Polyrhythm ships an update every 31 months, and Stellarvox every 5 months. Most recently, Polyrhythm was updated on October 14, 2026 and Stellarvox on October 9, 2026.

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