RISCy vs VOSIS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RISCy
Create unique electronic music and generative patterns with a visual synthesizer. Drag and drop tokens to build sound graphs, exploring sonic possibilities and hidden relationships. Ideal for experimental sound design.
- Drag and drop synthesizer interface
- Live coding with limited instruction set
- Build and manipulate synth graphs
- Create noisy sounds and generative patterns
- Discover hidden graph relationships
- Reset and random start options
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RISCy is a drag and drop synthesizer puzzle full of sonic perturbation. You live code via the limited instruction set in the lower part of the interface; drag out tokens to the top area to build your synth graph, drag a token back off the top area to remove it. Each token has an aural consequence, and some special tokens also change the nature of the hidden graph connecting active tokens; puzzling out these relationships is part of the fun. You'll be able to make lots of noisy sounds as well as generative sequenced patterns. Press ! to clear the graph and reset; press ? to get a random starting point. Download RISCy if you are open to stranger computer music sounds, and avoid it if you just want diatonic melodies and piano sounds!
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!
Screenshots
Verdict
The clearest difference is rating: RISCy at 4.7 against VOSIS's 4.2. RISCy also leads on iOS requirement (8.0 vs 13.0). VOSIS's advantage is update cadence (every 8 months vs every 39 months). On price, review sentiment, ratings volume and ads 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.
RISCy holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 88% of RISCy's written reviews are positive against 86% of VOSIS's.
RISCy ships an update every 39 months, VOSIS every 8 months. The most recent releases landed on October 22, 2026 and October 26, 2026 respectively.
| Parameter | RISCy | VOSIS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 88.2% of reviews — better | 85.7% of reviews |
| Number of ratings | 3 | 5 — better |
| Update frequency | Every 39 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Parmenter | Life Orange LLC |
Customer experience
RISCy
VOSIS
In-app purchases
RISCy
No in-app purchases
VOSIS
No in-app purchases









