Comparison

Visual Instrument vs Key2MEE

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

Head to head
About

Visual Instrument

This app uses touch input to trigger musical chords and create ambient melodies. Random key changes and physics-enabled "balls" generate unique, endlessly evolving soundscapes with accompanying visuals.

Highlights
  • Randomized chord generation
  • Multi-touch support
  • Physics-enabled sound triggers
  • Ambient visual backdrop
  • Endless melodic tunes
  • Key changes
Features
Read full description

The power of randomness combined with your touch creates an endless melody for your enjoyment. Jazz guitar virtuoso Paul Musso combined his musical knowledge with the programming and artwork of Bryan Leister to create this music-making application. Musso provided guitar recordings of chords typically used to create a melody - F#, D#, C and G. Your touch (supports up to 4 simultaneous touches) creates collisions that will trigger one of these chords. Every 3 seconds, the key is randomly changed to either A Minor, C, F or G. The result is an amazing, soothing and endless melodic tune that you can play for hours without the tune ever repeating itself. The visuals provide an ambient backdrop to help you play. The capsules represent your touch, each moving dot is a physics-enabled ball that contains one note. Hit a ball, and the note plays. If the ball hits the edges of the screen, the collision also triggers the note. An experiment in music theory that was produced for an exhibition in Denver that also used motion tracking. Now available as a touch screen application.

About

Key2MEE

Discover how you use music to manage your emotions and improve your well-being. This app offers a quiz to identify emotional patterns and provides personalized music-based strategies for better mood regulation and resilience.

Highlights
  • Emotional Profile Quiz
  • Music-based emotion regulation
  • Mood management strategies
  • Resilience improvement
  • Prescriptive playlists
  • Neuroscience and psychology-informed
Features
Read full description

Take a few minutes to complete your Key2MEE™ Emotional Profile QUIZ and read your results to find the key to you - or "MEE" - where you decode how you use Music to Exercise your Emotions to feel better. Find out if you're trapped in a Chronic Comfort Zone keeping you from feeling your best, and then what to do about it. Begin discovering your key to the power of music, with quiz results recommending resources for optimal mood management. Key2MEE supports you in understanding crucial steps of applying music for effective emotion regulation to improve resilience. Featuring the evidence-based practice of the Music4Life® Music Medicine Protocol, Key2MEE helps you decode the effectiveness of your music listening habits, based on neuroscience, psychology, and music therapy. Created by a music therapist, the protocol provides music therapy-informed strategies to thrive through adversity reducing emotional barriers. The Key2MEE QUIZ guides your results to recommended Music4Life resources of tutorials, a telehealth network of trained specialists, prescriptive playlists, research, and tools for caregivers, empowerment, and clinical work to support emotion regulation targeting improved resilience. The proprietary Music4Life Music Medicine Protocol is a formulaic, evidence-based patented system of assessment, education and prescriptive music playlist applications. Developed by licensed, certified music therapist Judith Pinkerton, LPMT #38972-LMT-3, MT-BC #06719, who has dedicated decades to develop this protocol with more than 11,000 clients in residential addiction treatment centers. Personalized and standardized prescriptive Music Medicine playlists are generated from neuroscience, psychology and music therapy-informed strategies. Certification trainings, a continuing education platform, DIY-Do-It-Yourself products, and a telehealth network of certified mental health providers enhance treatment regimens by helping you achieve a balanced music diet influencing your broad continuum of emotions to avoid entrapment in anxiety, anger, depression, or sadness. Personalized prescriptive playlists may influence the use of medication three ways: physician-directed reduction, cessation, or prescription. Read about the protocol and related research in Key2MEE's companion book for mood mastery: "Thriving through Adversity: Prescriptive Playlists to Reclaim Joy, Peace and Purpose in Life" (2024) by Judith Pinkerton, LPMT, MT-BC, with foreword by Colonel (R) Kevin McCal, PhD, MMCS, Clinical Psychologist.

Screenshots

Visual Instrument3 screens
Key2MEE4 screens

Verdict

The call

The clearest difference is update cadence: Key2MEE at every 4 weeks against Visual Instrument's every 64 months. On price, rating, 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

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

On the App Store both sit at effectively the same score — 5.0 for Visual Instrument against 5.0 for Key2MEE. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Visual Instrument ships an update every 64 months, Key2MEE every 4 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 8 level
Visual Instrument versus Key2MEE: the parameters behind the verdict, then further details
ParameterVisual InstrumentKey2MEE
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 64 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better13.4
Further details — not scored
Size56 MB23 MB
Age rating4+4+
DeveloperBryan LeisterMusic 4 Life Technology Inc.

Customer experience

Visual Instrument

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Key2MEE

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Visual Instrument

No in-app purchases

None

Key2MEE

No in-app purchases

Questions

Is Visual Instrument free?
Visual Instrument is free to download, with no in-app purchases.
Is Key2MEE free?
Key2MEE is free to download, with no in-app purchases.
Which has better reviews, Visual Instrument or Key2MEE?
Visual Instrument and Key2MEE are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Visual Instrument or Key2MEE have ads?
Neither Visual Instrument nor Key2MEE shows ads.
Which is updated more often, Visual Instrument or Key2MEE?
Visual Instrument ships an update every 64 months, and Key2MEE every 4 weeks. Most recently, Visual Instrument was updated on October 5, 2026 and Key2MEE on October 7, 2026.

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