MuSA_RT vs vClick Client
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 3D tonality visualization
- Audio analysis for pitch and context
- Chord and key identification
- Augmented Reality mode
- Smooth camera rotation for unobstructed views
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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.
vClick Client
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vClick client is a part of vClick system - visual clicktrack system for musicians. It replaces traditional earphone - recorded audio clicktrack system - no special hardware needed, no need for cables, headphones, extra amplifiers or mixers - the signals about bars/beats etc are sent from central computer (vClick server) to players having vClick client in their smartphones over wifi. To use vClick client, enter the server IP addrress of computer running vClick server, press "Hello, server" and if you see message "Got you!" you are ready to go. See more: http://tarmoj.github.io/vclick/pages/getting-started.html
Screenshots
Verdict
The clearest difference is update cadence: MuSA_RT at every 3 months against vClick Client's every 49 months. On price, ads, in-app purchases and device support 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.
MuSA_RT ships an update every 3 months, vClick Client every 49 months. The most recent releases landed on October 22, 2026 and October 19, 2026 respectively.
| Parameter | MuSA_RT | vClick Client |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months — better | Every 49 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexandre Francois | Tarmo Johannes |
In-app purchases
MuSA_RT
No in-app purchases
vClick Client
No in-app purchases









