# isfizz vs Stellarvox

The clearest difference is price: isfizz at $2.99 against Stellarvox's $11.99. isfizz also leads on update cadence (fortnightly vs every 5 months). Stellarvox's advantage is rating (5.0 vs 4.7) and chart position (#191 vs unranked). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

isfizz costs $2.99 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 — 14 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

isfizz ships an update fortnightly, Stellarvox every 5 months. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | isfizz | Stellarvox |
| --- | --- | --- |
| Price | **$2.99** | $11.99 |
| Rating | [4.7 (14 ratings)](https://appshunter.io/ios/app/isfizz/id6470708963/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/stellarvox/id6472060413/reviews)** |
| Number of ratings | **14** | 11 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#191** |
| Size | 6 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouta Kira](https://appshunter.io/developer/862984358) | [Igor Vasiliev](https://appshunter.io/developer/424401626) |

## What reviewers say

### isfizz

[App page](https://appshunter.io/ios/app/isfizz/id6470708963)

This app plays SFZ files, an open format for sampled sound instruments. It supports various audio file formats, MIDI, and Scala tuning files. It also functions as an Audio Unit Extension (AUv3) for use with other music apps.

**Highlights:** SFZ file playback, Audio Unit Extension (AUv3) support, Edit SFZ strings, Load SFZ files in place, Scala tuning file support, MIDI support

**Features:** Vision Pro support

**In-app purchases:** none


### Stellarvox

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

**Currently charting:** #191 Top Paid · Music (US App Store)

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 isfizz free?

isfizz costs $2.99, with no in-app purchases.

### Is Stellarvox free?

Stellarvox costs $11.99, with no in-app purchases.

### Which has better reviews, isfizz or Stellarvox?

Stellarvox is rated higher. isfizz averages 4.7 out of 5 from 14 ratings, while Stellarvox averages 5.0 from 11 ratings.

### Do isfizz or Stellarvox have ads?

Neither isfizz nor Stellarvox shows ads.

### Which is updated more often, isfizz or Stellarvox?

isfizz ships an update fortnightly, and Stellarvox every 5 months. Most recently, isfizz was updated on September 19, 2026 and Stellarvox on September 22, 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.*