Comparison

Mersenne vs Stellarvox

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

Head to head
About

Mersenne

This app is an AUv3-compatible synthesizer designed to create bell-like metallic sounds. It combines FM synthesis, a noise generator, and a resonator for crafting clear tones and complex metallic textures.

Highlights
  • AUv3-compatible synthesizer
  • Dual FM synthesis modules
  • Noise generator
  • Resonator
  • Metallic sound design
  • Bell-like tones
Features
Read full description

Mersenne is an AUv3-compatible synthesizer that combines two FM synthesis modules, a noise generator, and a resonator to create bell-like metallic sounds. It is specifically designed for crafting both clear tones and complex textures with a distinctive metallic grit, making it an ideal tool for those deeply exploring metallic sound design. For more detailed information about the product, please visit the website. The website offers detailed product descriptions, manuals and videos, as well as important notices. https://icegear.net/

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
Read full description

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

Mersenne4 screens
Stellarvox3 screens

Verdict

The call

The clearest difference is update cadence: Mersenne at monthly against Stellarvox's every 5 months. Mersenne also leads on price ($8.00 vs $11.99) and iOS requirement (12.0 vs 15.0). Stellarvox's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 88%). On ratings volume, ads, in-app purchases and monetization model 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

Mersenne costs $8.00 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

Stellarvox holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 28 and 11 respectively. Written reviews point the same way: 88% of Mersenne's written reviews are positive against 100% of Stellarvox's.

UpkeepUpdate frequency

Mersenne ships an update monthly, Stellarvox every 5 months. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
Mersenne versus Stellarvox: the parameters behind the verdict, then further details
ParameterMersenneStellarvox
Price$8.00 — better$11.99
Rating4.7 (28 ratings)5.0 (11 ratings) — better
Positive reviews87.5% of reviews100.0% of reviews — better
Number of ratings28 — better11
Update frequencyMonthly — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size11 MB4 MB
Age rating4+4+
DevelopericeWorks, Inc.Igor Vasiliev

Customer experience

Mersenne

All ratings28 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews40 reviews
Positive87.5%
Neutral7.5%
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

Mersenne

No in-app purchases

None

Stellarvox

No in-app purchases

Questions

Is Mersenne free?
Mersenne costs $8.00, with no in-app purchases.
Is Stellarvox free?
Stellarvox costs $11.99, with no in-app purchases.
Which has better reviews, Mersenne or Stellarvox?
Stellarvox is rated higher. Mersenne averages 4.7 out of 5 from 28 ratings, while Stellarvox averages 5.0 from 11 ratings.
Do Mersenne or Stellarvox have ads?
Neither Mersenne nor Stellarvox shows ads.
Which is updated more often, Mersenne or Stellarvox?
Mersenne ships an update monthly, and Stellarvox every 5 months. Most recently, Mersenne was updated on October 12, 2026 and Stellarvox on October 9, 2026.

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