Comparison

MuSA_RT vs WizzJ

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

Head to head
About

MuSA_RT

This app visualizes music tonality in 3D using advanced algorithms. It analyzes audio from your microphone to identify chords and keys, displaying them with a rotating camera or in augmented reality.

Highlights
  • 3D tonality visualization
  • Audio analysis for pitch and context
  • Chord and key identification
  • Augmented Reality mode
  • Smooth camera rotation for unobstructed views
Read full description

MuSA_RT applies music analysis algorithms rooted in Elaine Chew’s Spiral Array model of tonality, which also provides the 3D geometry for the visualization space. The app analyzes the audio signal received from a microphone to determine pitch names, maintain short term and longterm tonal context trackers, each a Center of Effect (CE), and compute the closest triads (3-note chords) and keys as the music unfolds in performance. The 3D view presents a graphical representations of these tonal entities in context, smoothly rotating the virtual camera to provide an unobstructed view of the current information. These graphics can also be visualized in an experimental Augmented Reality mode on compatible devices.

About

WizzJ

Experience stunning generative art that dynamically syncs with your music. This app creates immersive visualizers from your device's music library or microphone input, offering a unique artistic interpretation of sound.

Highlights
  • Generative art animations
  • Music library sync
  • Microphone input support
  • 36 unique visual styles
  • High-resolution display support
  • Create music videos
Features
Read full description

WizzJ is a cutting-edge music visualizer for high-end iOS devices. It fully exploits the latest advances in graphic processors to create a flow of animated generative art. The animations are synced with the beat and texture of the music being played from your music library. If no music is playing, WizzJ can capture input from the microphone. WizzJ represents a new generation in the art of music visualization! Download WizzJ for free and enjoy a fully functional preview of the available 36 styles, each providing a unique and immersive experience: A Flower of Life, Alien Speak, Ancient Glyphs, Beat Tunnel, Beat'n Chaos, Blossoming, Breeze of Oil, Brick Islands, Color Wand, Cricumpunct, Crystal's World, Dancing Blobs, Disco Sun, Entwined, Girl's Best Friend, Holes of Color, LP's Revenge, Matrix, Neon Ice, Ocean, OneHundredEiiigghtyyyy, Phoenix, Polar Texture, Pop Art Dive, Puzzled, Rainbow's Birth, Sandworms, SpeedBeat, T-Rex's Skin, Tentacles, The Beauty Within, Threads of Light, Threesome, Wanna Kiss?, Wave Dance, Wheel of Color. WizzJ uses Apple's built-in media player and can thus access your existing songs and playlists. In contrast to most other visualizers, WizzJ analyzes the sound of played songs without using the microphone; hence you can enjoy WizzJ even with headsets. Note: Apple does not allow to analyze streamed music. Thus, only music saved on your device and played through the internal iOS audio player is supported. Unfortunately, Apple Music, Spotify et al can therefore not be supported. WizzJ can support the device's native display resolution for a detailed and crystal clear presentation. Activate this feature in the Settings App if you have a powerful device. You can easily create your own music videos by capturing WizzJ's animations with QuickTime and your Mac. Videos and more info can be found on the "Developer Website". Customer comments: ***** Unbelievable Music App "Best music app so far in iTunes Store. Can't go wrong with this one." ***** Beyond beautiful "I just downloaded WizzJ on my iPhone 6 Plus, and I really wanted to express my gratitude for this app. The graphics are beyond beautiful and amazing." ***** 5 stars for sure! "I am delighted to look at the magnific moving designs while listening to my own music. Very Impressed by the various choice of fascinating designs available too. Thank you very much for creating such a beautiful app. It is worth to see it, I am sure that you will enjoy !!!" ***** Unique to iOS, beautiful visualizer "Beautifully crafted automata to match your music. Few apps are made in iOS for generative visualizations and this is by far the best quality; maybe the only app with a very select choices of algorithms/colorizations!" ***** Finally a real visualizer! "Been looking exactly for this! Now if only it had the nice equalizer functions of a couple other apps - and if it would just play my playlists! Other than that! Six stars. You heard me six stars. Love it!" ***** Love it "I'm in love with this app!" Supported Gestures: - one finger double-tap: show/hide player - two finger single-tap: show/hide styles list - two finger swipe right/left: next/previous style - two finger swite down: pause/resume animation - three finger single-tap: screenshot System requirements: - iPhone 8 or higher - iPad 5th generation or higher - iPad Air 3rd generation or higher - iPad mini 5th generation or higher To enable devices without microphone for AirPlay or Bluetooth headphones disable the microphone input by tapping the microphone icon.

Screenshots

MuSA_RT2 screens
WizzJ4 screens

Verdict

The call

The clearest difference is review sentiment: WizzJ at 53% against MuSA_RT's 0%. WizzJ also leads on update cadence (every 2 weeks vs every 3 months) and ratings volume (25 vs 1). MuSA_RT's advantage is rating (5.0 vs 3.2) and in-app purchases (none vs 3). On price 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. WizzJ sells 2 one-off in-app purchases. MuSA_RT asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MuSA_RT holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: WizzJ has 25 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of MuSA_RT's written reviews are positive against 53% of WizzJ's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

MuSA_RT ships an update every 3 months, WizzJ every 2 weeks. Both last shipped on November 1, 2026.

Scorecard8 real differences · 2 level
MuSA_RT versus WizzJ: the parameters behind the verdict, then further details
ParameterMuSA_RTWizzJ
PriceFreeFree
Rating5.0 (1 ratings) — better3.2 (25 ratings)
Positive reviews0.0% of reviews52.9% of reviews — better
Number of ratings125 — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size3 MB7 MB
Age rating4+4+
DeveloperAlexandre FrancoisJoachim Wolffram

Customer experience

MuSA_RT

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

WizzJ

All ratings25 ratings
Positive56.0%
Neutral0.0%
Negative44.0%
Written reviews34 reviews
Positive52.9%
Neutral5.9%
Negative41.2%

In-app purchases

None

MuSA_RT

No in-app purchases

2 purchases

WizzJ

One-time2
  • Style Bundle "Living Light"2 variants$1.99
  • Style Bundle "Jump Start"$2.99

Questions

Is MuSA_RT free?
MuSA_RT is free to download, with no in-app purchases.
Is WizzJ free?
WizzJ is free to download, with in-app purchases available.
Which has better reviews, MuSA_RT or WizzJ?
MuSA_RT is rated higher. MuSA_RT averages 5.0 out of 5 from 1 ratings, while WizzJ averages 3.2 from 25 ratings.
Do MuSA_RT or WizzJ have ads?
Neither MuSA_RT nor WizzJ shows ads.
Which is updated more often, MuSA_RT or WizzJ?
MuSA_RT ships an update every 3 months, and WizzJ every 2 weeks. Most recently, MuSA_RT was updated on November 1, 2026 and WizzJ on November 1, 2026.

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