# VOSIS vs Deetone

The clearest difference is review sentiment: VOSIS at 86% against Deetone's 50%. VOSIS also leads on rating (4.2 vs 3.8). Deetone's advantage is update cadence (monthly vs every 8 months) and iOS requirement (11.0 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 3.8. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews point the same way: 86% of VOSIS's written reviews are positive against 50% of Deetone's.

VOSIS ships an update every 8 months, Deetone monthly. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | VOSIS | Deetone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/vosis/id783342051/reviews)** | [3.8 (4 ratings)](https://appshunter.io/ios/app/deetone/id1447346017/reviews) |
| Number of ratings | **5** | 4 |
| Positive reviews | **85.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free | Free |
| Size | 11 MB | 20 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Life Orange LLC](https://appshunter.io/developer/783342054) | [Kyrylo Kovalin](https://appshunter.io/developer/928871588) |

## 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


### Deetone

[App page](https://appshunter.io/ios/app/deetone/id1447346017)

Create unique sounds with a monophonic synthesizer featuring four waveform types. Explore two distinct playing modes for studio work or live performance, enhanced by a rich delay effect.

**Highlights:** Monophonic synthesizer, Four waveform types (saw, square, triangle, sine), Chromatic keyboard mode, Creative ribbon mode for pitch and filter modulation, LFO modulation for filter cutoff, Delay FX

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VOSIS free?

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

### Is Deetone free?

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

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

VOSIS is rated higher. VOSIS averages 4.2 out of 5 from 5 ratings, while Deetone averages 3.8 from 4 ratings.

### Do VOSIS or Deetone have ads?

Neither VOSIS nor Deetone shows ads.

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

VOSIS ships an update every 8 months, and Deetone monthly. Most recently, VOSIS was updated on November 1, 2026 and Deetone on October 24, 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.*