# VOSIS vs Rhythmloop

The clearest difference is ads: VOSIS at none against Rhythmloop's shown. VOSIS also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

VOSIS ships an update every 8 months, Rhythmloop every 7 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | VOSIS | Rhythmloop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/vosis/id783342051/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 11 MB | 46 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Life Orange LLC](https://appshunter.io/developer/783342054) | [jon harrison wood](https://appshunter.io/developer/1863624884) |

## What reviewers say

### 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


### Rhythmloop

[App page](https://appshunter.io/ios/app/rhythmloop/id6757023850)

**In-app purchases:** none


## Frequently asked questions

### Is VOSIS free?

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

### Is Rhythmloop free?

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

### Do VOSIS or Rhythmloop have ads?

Rhythmloop shows ads; VOSIS does not.

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

VOSIS ships an update every 8 months, and Rhythmloop every 7 months. Most recently, VOSIS was updated on October 6, 2026 and Rhythmloop on October 2, 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.*