VOSIS vs Rhythmloop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VOSIS
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.
- Image sonification
- Visual music composition
- Experimental sound design
- Pixel luminance audification
- Shape-timbre relationships
- Adjustable pitch and timbre
- ADSR envelope control
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VOSIS is a synthesizer combining audification of greyscale pixel data with several image filters. It is a tool for image sonification, visual music composition, and experimental sound design. The audification of pixel luminance values creates shape-timbre relationships. Pixel scan rate is controlled in terms of note interval, octave, and scale to give varying pitch between image regions. The ADSR envelope allows one to play images as a non-linear sequence of pitches with varying wavetable/timbre. For more features including presets and unlimited recording see VOSIS Pro. Visit vosis.app for sound example, demo videos, and user guide!
Rhythmloop
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Discover music that fits your moment, and turn inspiration into tracks, sets, and live moments people can feel with Rhythmloop. For curious listeners, working artists, and everyone between. For listeners, find your next favorite sound. For musicians, turn ideas into music people can hear. Terms of Use (EULA): Apple Standard EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | VOSIS | Rhythmloop |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 8 months | Every 7 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 11 MB | 46 MB |
| Age rating | 4+ | 12+ |
| Developer | Life Orange LLC | jon harrison wood |
In-app purchases
VOSIS
No in-app purchases
Rhythmloop
No in-app purchases
