Beat Kitchen Harmony Wheel vs QUARK Play
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Beat Kitchen Harmony Wheel
This app analyzes music in real-time, identifying chords, their functions within a key, and recording progressions. It also includes a tuner, metronome, and key detection for producers and musicians.
- Real-time chord and key identification
- Chord function labeling (I, IV, V, etc.)
- Recording of musical progressions
- MIDI input with built-in synth
- Real-time tuner and metronome
- Key detection for DJs
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The Beat Kitchen Harmony Wheel is a musician and producer toolkit — a tuner for chords and a measurement device for the vitals of the music in front of you. Point it at your mic or play it over MIDI, and it reads the harmony as it happens — the chord, the key, and the job that chord is doing. Works on piano, guitar, or recorded music with clear harmonic movement. It identifies each chord's role, not just its name, using the Beat Kitchen Ten Chord Toolkit (explained in the guidebook built into the app): the tonic (I) you keep coming back to, the IV that opens things up, the V that wants to resolve, a V/vi setting up a detour, a bVII pulled from the parallel minor. The matching wedge lights up as you play. What it does Hears chords from your mic in real time, right on your device — nothing leaves your phone Labels the wheel by function, not just by chord name: I, ii, IV, V, V/vi, bVII, and the rest Records what you played so you can study the path a progression took Tap any wedge to hear the chord Takes MIDI in, wired or over Bluetooth, with a built-in synth Locks to your key so the wheel orients to the music you're in A Learn tab that walks through what you're looking at If you've reached for a circle of fifths or a key finder before, you're in the same neighborhood — except this one works in real time, while the music is still playing. Producer Tools A tuner and a metronome, built for the studio. Check your tuning. Tap a tempo or let the mic detect it for you, then read it in BPM and in milliseconds for every subdivision — with your own click sound on each one. Watch the beat pulse from across the room and feel it in your pocket with haptics (iPhone). And because the wheel already reads your key in real time, it doubles as a key detector for DJs lining up harmonic transitions. Who it's for Producers, DJs, songwriters, students, and anyone who can tell a progression is doing something to them but can't always say what. You don't need to read music. You need to be curious about why a few chords in a row can move you. It's theory you can hear before you can spell it. Beat Kitchen is a school that teaches harmony by ear and by function first. Harmony Wheel puts that same way of listening on your phone.
QUARK Play
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QUARK Play easily transforms up to four iOS devices into a wireless, quadraphonic sound system. Place iPhones, iPads, and/or Macs around the space (or connect them to bluetooth speakers), hit play on the host device, and build a true, immersive surround sound environment anywhere. The Quadraphonic Universally Accessible Resource Kit (QUARK) is open source software used in Digital Audio Workstations (DAWs) and similar platforms to encode four channels of discrete audio into two channel (standard stereo) audio, then back to four channels again. This allows for the distribution of four-channel spatial recordings via widely accessible two-channel formats such as vinyl, cassette, and radio, as well as digital platforms such as YouTube, Spotify, and Qobuz. QUARK is made possible by dublab & the National Endowment for the Arts.
Screenshots
Verdict
The clearest difference is price: QUARK Play at Free against Beat Kitchen Harmony Wheel's $6.99. Beat Kitchen Harmony Wheel's advantage is iOS requirement (14.0 vs 16.6). On update cadence, 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
QUARK Play is free to download; Beat Kitchen Harmony Wheel costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Beat Kitchen Harmony Wheel ships an update every 4 days, QUARK Play every 6 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | Beat Kitchen Harmony Wheel | QUARK Play |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 5.0 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 4 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 51 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Beat Kitchen LLC | AKP Recordings LLC |
In-app purchases
Beat Kitchen Harmony Wheel
No in-app purchases
QUARK Play
No in-app purchases
Questions
Is Beat Kitchen Harmony Wheel free?
Is QUARK Play free?
Do Beat Kitchen Harmony Wheel or QUARK Play have ads?
Which is updated more often, Beat Kitchen Harmony Wheel or QUARK Play?
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