# Mersenne vs Stellarvox

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.

Mersenne costs $8.00 and Stellarvox $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

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.

Mersenne ships an update monthly, Stellarvox every 5 months. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Mersenne | Stellarvox |
| --- | --- | --- |
| Price | **$8.00** | $11.99 |
| Rating | [4.7 (28 ratings)](https://appshunter.io/ios/app/mersenne-auv3-plug-in-synth/id1084197093/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/stellarvox/id6472060413/reviews)** |
| Number of ratings | **28** | 11 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 11 MB | 4 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iceWorks, Inc.](https://appshunter.io/developer/347507439) | [Igor Vasiliev](https://appshunter.io/developer/424401626) |

## What reviewers say

### Mersenne

[App page](https://appshunter.io/ios/app/mersenne-auv3-plug-in-synth/id1084197093)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Stellarvox

[App page](https://appshunter.io/ios/app/stellarvox/id6472060413)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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 19, 2026 and Stellarvox on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*