# sqrt vs VOSIS

The clearest difference is rating: VOSIS at 4.2 against sqrt's 3.3. VOSIS also leads on review sentiment (86% vs 58%) and monetization model (free vs free with in-app purchases). sqrt's advantage is update cadence (every 5 weeks vs every 8 months) and iOS requirement (8.4 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

VOSIS holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews point the same way: 58% of sqrt's written reviews are positive against 86% of VOSIS's.

sqrt ships an update every 5 weeks, VOSIS every 8 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | sqrt | VOSIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7 ratings)](https://appshunter.io/ios/app/sqrt-audio/id633454463/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/vosis/id783342051/reviews)** |
| Number of ratings | **7** | 5 |
| Positive reviews | 57.9% of reviews | **85.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 14 MB | 11 MB |
| Requires iOS | **8.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TeaTracks](https://appshunter.io/developer/347383592) | [Life Orange LLC](https://appshunter.io/developer/783342054) |

## What reviewers say

### sqrt

[App page](https://appshunter.io/ios/app/sqrt-audio/id633454463)

This app allows users to trigger and manipulate sounds on a multitouch surface. The pro version enables loading custom audio files and creating personalized sound grids. It offers a unique playback control system where sound parameters are interpolated across the screen.

**Highlights:** Multitouch sound triggering, Drag-to-manipulate sound parameters, Load custom sounds (Pro version), Create custom sound grids (Pro version), Interpolate between parameter presets, Includes curated glitch sounds

**Features:** macOS Compatibility

**In-app purchases:** none


### VOSIS

[App page](https://appshunter.io/ios/app/vosis/id783342051)

This app transforms image data into sound, allowing for unique musical compositions and experimental sound design. It offers control over pitch, timbre, and envelopes to create shape-timbre relationships from visual input.

**Highlights:** Image sonification, Visual music composition, Experimental sound design, Pixel luminance audification, Shape-timbre relationships, Adjustable pitch and timbre, ADSR envelope control

**In-app purchases:** none


## Frequently asked questions

### Is sqrt free?

sqrt is free to download, with no in-app purchases.

### Is VOSIS free?

VOSIS is free to download, with no in-app purchases.

### Which has better reviews, sqrt or VOSIS?

VOSIS is rated higher. sqrt averages 3.3 out of 5 from 7 ratings, while VOSIS averages 4.2 from 5 ratings.

### Do sqrt or VOSIS have ads?

Neither sqrt nor VOSIS shows ads.

### Which is updated more often, sqrt or VOSIS?

sqrt ships an update every 5 weeks, and VOSIS every 8 months. Most recently, sqrt was updated on October 23, 2026 and VOSIS on October 26, 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.*