Comparison

AUMI vs VOSIS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • Image sonification
  • Visual music composition
  • Experimental sound design
  • Pixel luminance audification
  • Shape-timbre relationships
  • Adjustable pitch and timbre
  • ADSR envelope control
Read full description

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

AUMI4 screens
VOSIS2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
AUMI versus VOSIS: the parameters behind the verdict, then further details
ParameterAUMIVOSIS
PriceFreeFree
Rating5.0 (4 ratings) — better4.1 (10 ratings)
Positive reviews50.0% of reviews85.7% of reviews — better
Number of ratings410 — better
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.4 — better13.0
Further details — not scored
Size69 MB11 MB
Age rating4+4+
DeveloperRensselaer Polytechnic InstituteLife Orange LLC

Customer experience

AUMI

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

VOSIS

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews14 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

In-app purchases

None

AUMI

No in-app purchases

None

VOSIS

No in-app purchases

Questions

Is AUMI free?
AUMI is free to download, with no in-app purchases.
Is VOSIS free?
VOSIS is free to download, with no in-app purchases.
Which has better reviews, AUMI or VOSIS?
AUMI is rated higher. AUMI averages 5.0 out of 5 from 4 ratings, while VOSIS averages 4.1 from 10 ratings.
Do AUMI or VOSIS have ads?
Neither AUMI nor VOSIS shows ads.
Which is updated more often, AUMI or VOSIS?
AUMI ships an update every 6 months, and VOSIS every 8 months. Most recently, AUMI was updated on October 11, 2026 and VOSIS on October 29, 2026.

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