AUMI vs VOSIS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AUMI
This app allows individuals with limited mobility to create music through movement and gestures. It focuses on improvisation and self-expression, making music accessible to a wider range of people, including those with profound physical disabilities.
- Music creation through movement and gestures
- Focus on improvisation and self-expression
- Accessible for individuals with profound physical disabilities
- Uses device cameras for input
- Configurable sound sensitivity
- MIDI controller functionality
- Import audio from other apps
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Adaptive Use Musical Instruments (AUMI) software interface enables people who have very limited controlled (voluntary) movement to independently engage in music making. The Adaptive Use Musical Instruments software interface enables the user to play sounds and musical phrases through movement and gestures. This is an entry to improvisation rather than “hitting the right notes” or playing set pieces of music. Instead, the software uses music as a way for participants to express a range of affects, both by themselves and in response to, or in conversation with, others. While the AUMI interface can be used by anyone, the focus has been on working with people who have profound physical disabilities. In taking these participants as its starting point, the project attempts to make musical improvisation and collaboration accessible to the widest possible range of individuals. This approach also opens up the possibility of learning more about the relations between ability, the body, creativity and improvisation, from within a cultural context that does not always acknowledge or accept people with disabilities. This iOS version of AUMI runs on devices with cameras, and can run on iPhones, iPod touches, and iPads. A large assortment of sounds can be triggered with configurable amounts of sensitivity. AUMI also can be used as a MIDI controller to access other iOS based synthesizers or external equipment (using the iPad's Camera Connection kit or via Core MIDI over WiFi.) AUMI can also import audio from other iOS or desktop apps to be used as melodic or percussive instruments. AUMI can capture a record of the movement in the session, which can be exported and turned into reports in a clinical setting.
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: AUMI at 5.0 against VOSIS's 4.1. VOSIS's advantage is review sentiment (86% vs 50%). On price, ratings volume, update cadence 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.
AUMI holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews complicate that: 50% of AUMI's written reviews are positive against 86% of VOSIS's, so the app with the better star average is not the one people write more warmly about.
AUMI ships an update every 6 months, VOSIS every 8 months. The most recent releases landed on October 11, 2026 and October 29, 2026 respectively.
| Parameter | AUMI | VOSIS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.1 (10 ratings) |
| Positive reviews | 50.0% of reviews | 85.7% of reviews — better |
| Number of ratings | 4 | 10 — better |
| Update frequency | Every 6 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 13.0 |
| Further details — not scored | ||
| Size | 69 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Rensselaer Polytechnic Institute | Life Orange LLC |
Customer experience
AUMI
VOSIS
In-app purchases
AUMI
No in-app purchases
VOSIS
No in-app purchases








