Comparison

Beat Kitchen Harmonic Synth vs Orbeat

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

Head to head
About

Beat Kitchen Harmonic Synth

Shape the overtone series directly to create unique sounds. This additive synthesizer allows real-time manipulation of harmonics, LFOs, and envelopes. Explore sound design and synthesis on your device.

Highlights
  • Additive synthesis engine
  • Overtone series shaping
  • Live waveform and spectrum response
  • Modulation matrix with LFOs and envelopes
  • AUv3 support
  • On-device processing
Features
Read full description

BKS Harmonic is an additive synthesizer that builds sound from individual overtones, then gives you tools to shape, scan and filter them by harmony. Load it as an Audio Unit v3 inside AUM, GarageBand, Cubasis, Loopy Pro or any AUv3 host, or run it standalone. A TUNER THAT KNOWS ABOUT STRETCH Tune mode turns the scope into a tuner: it names the note it hears and shows how far sharp or flat it is in cents, with a ring that closes as you land on the pitch. It tunes against the stretch curve rather than equal temperament, so it follows a real instrument. Stretch shapes the overtones inside a note; Key Stretch makes the keyboard follow it, so octaves widen the way a piano's do. FOURTEEN TUNING SYSTEMS, AND A TEMPERAMENT EDITOR Equal and Just, five historical temperaments, and six from outside the European tradition including Maqam Rast, Turkish Rast, Slendro, Pelog and the Harmonic Series. The Temperament slider is a morph, not a switch: fully left is Just, fully right is whichever you chose. Twelve bars show any system as cents away from equal; drag one to make the tuning yours, then copy it out as plain text. Tunings save with the preset. FIVE HUNDRED SCALES Searchable by alternate name: malkauns, nikriz, bhupali and freygish find the right set. THE PARTIALS ARE THE INSTRUMENT The partials display shows every overtone in your sound, and four tools work on it directly. FOLD sweeps upper partials below the fundamental, redistributing energy across harmonic layers — not a filter. The OVERTONE SCAN steps a spotlight through individual partials with triangle, saw or random patterns, and can visit only partials in the active scale. The HARMONIC GATE reinforces partials whose pitch class matches your chord and suppresses the rest: capture a chord, follow MIDI, split the keyboard, or pick the notes on the gate's own keys. SCULPT draws the level and pan of every partial, slides the curve up the grid as a formant, and locks partials in place while the rest moves. THE HARMONIC VOCODER Pass live input or a sample through the synth as an effect. Your sound travels through a bank of tuned peaking bells rather than being replaced by filtered noise: open the Air and the source stays dry, tighten it and the bands resonate into it. Key Track is the mode switch: on it plays as an instrument, off it is a fixed filter you can sweep. Aimed at a sample, the bands track that sample's spectrum as it evolves. One level-matched Blend control crossfades it against the oscillators. PULSE-WIDTH MODULATION Set the core to a saw and Source 2 to a saw: the two ramps subtract, which is what a pulse wave is, and the phase between them sets the duty cycle. Modulate it and you have PWM. A preset in the Utility folder is ready to play. MODULATION A cog on almost every control, so the synth's own engine can drive nearly anything in the interface, including the display. Sources include velocity, envelopes, LFOs, how many notes you hold, how many oscillators sound, the synth's own output level, and Atmo, a shape driven by 84 years of barometric weather data from the Beat Kitchen Weather Sonification Project. Rates run from audio rate down to cycles that span years. THE SCOPE A stereoscope, oscilloscope, spectrum and a live per-partial display. Glow takes the trace from a hard line to a diffuse bloom, Colour sets the hue, Trace Speed and Dot set how it draws — and every one is a modulation target. Route velocity to Colour and the trace shifts as you play. LIVE INPUT A headphone button passes the side-chain straight to the output, so you can hear and see your input with nothing held: green when signal arrives, amber when a bus is connected but silent, red when nothing is. Resynth Speed locks a sample's playback speed to pitch, tape-style, or keeps them independent. Every control has a tooltip, presets work offline, and a harmony wheel follows what you play. One purchase, every update. Made by Beat Kitchen, a music production and teaching community.

About

Orbeat

This music app offers a unique circular sequencer for beat creation, featuring four distinct drum kits and generative tools. It allows for advanced rhythmic manipulation and can be used as a standalone instrument or an AUv3 plugin. Unlock full features with a one-time purchase.

Highlights
  • Circular sequencer interface
  • Four unique drum kits
  • Generative rhythm patterns
  • Swing and velocity controls
  • Probability and polymeter
  • AUv3 plugin support
  • WAV export
Features
Read full description

Orbeat is a drum machine in the round. Instead of a grid, your rhythm lives on a glowing mandala — concentric lanes of light that orbit a single play button. Tap the rings, watch the playhead sweep, and feel the groove move. Built to be played, not programmed. Open it and you're already making beats. A CIRCULAR SEQUENCER — UP TO TWELVE LANES Six lanes wrap the screen as rings, and the circle can grow to twelve: the mandala opens a second page of rings in its own electric color set, so every lane keeps its full size. Tap to place hits, lock a lane you love, mute and solo as you build the groove layer by layer. The whole pattern turns as it plays. FOUR DRUM KITS Classic, Acoustic, Glitch, and 8-bit — one tap reskins every voice while your pattern stays put. From clean and punchy to broken and chiptune. BRING YOUR OWN SOUNDS Build a custom kit and drop your own audio into any lane — WAV, AIFF or mp3, up to ten seconds, played at its original pitch and in stereo. Imported samples run clean to the output, while the lanes you leave alone keep their synth voice, so a hi-hat you recorded yourself sits right next to Orbeat's own drums. Your first custom kit is free. GENERATORS THAT SURPRISE YOU Roll the dice for an instant pattern, or use Euclidean rhythms to spread hits evenly around a ring. Like what you hear? Tap the ring to write it in and edit by hand. MAKE IT BREATHE, MAKE IT DRIFT Add swing to push the feel off the grid, draw velocity per step for accents that live, and pan each lane across the stereo field. With Probability, hits fire by chance; with polymeter, each lane gets its own length so the phases drift in and out of sync. TAKE IT ANYWHERE Bounce any loop to a stereo WAV — named with the beat, its length and its tempo, so it still makes sense in your DAW next month — or run Orbeat as an AUv3 instrument with MIDI in & out — sequence other instruments, or play Orbeat's lanes from your host's piano roll inside GarageBand, AUM, Logic, and other AUv3 hosts. Standalone, play the pads live from any MIDI controller and sync the whole groove to external MIDI clock. PLAY IN SYNC WITH THE ROOM Ableton Link keeps Orbeat in time with every Link-enabled app and device on your network — Ableton Live, AUM, Loopy, a friend's iPad across the table. Tempo follows the session, start and stop are shared, and everyone stays in phase. No cables, no setup. PLAY FREE. UNLOCK ONCE. The full instrument is free forever — every kit, the six-lane circle, Euclidean generators, swing, velocity, pan, your first custom kit with your own samples, MIDI in & out, and Ableton Link. Orbeat Pro is a single one-time purchase (no subscription, ever) that unlocks room to grow the circle to twelve lanes, plus Probability, polymeter, WAV export, unlimited saved beats, and extra custom kits. Made for iPhone and iPad. No account, no ads, no tracking — your beats never leave your device unless you share them. Tap the rings. Make it move.

Screenshots

Beat Kitchen Harmonic Synth4 screens
Orbeat4 screens

Verdict

The call

The clearest difference is rating: Orbeat at 5.0 against Beat Kitchen Harmonic Synth's 4.8. On price, review sentiment, ratings volume and update cadence 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. Beat Kitchen Harmonic Synth sells 1 one-off in-app purchase and Orbeat sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Orbeat holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Beat Kitchen Harmonic Synth ships an update every 3 days, Orbeat every 6 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 9 level
Beat Kitchen Harmonic Synth versus Orbeat: the parameters behind the verdict, then further details
ParameterBeat Kitchen Harmonic SynthOrbeat
PriceFreeFree
Rating4.8 (12 ratings)5.0 (6 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better6
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size60 MB5 MB
Age rating4+4+
DeveloperBeat Kitchen LLCChih Han Lin

Customer experience

Beat Kitchen Harmonic Synth

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Orbeat

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Beat Kitchen Harmonic Synth

One-time1
  • Full Unlock$14.99
1 purchases

Orbeat

One-time1
  • Orbeat Pro$5.99

Questions

Is Beat Kitchen Harmonic Synth free?
Beat Kitchen Harmonic Synth is free to download, with in-app purchases available.
Is Orbeat free?
Orbeat is free to download, with in-app purchases available.
Which has better reviews, Beat Kitchen Harmonic Synth or Orbeat?
Orbeat is rated higher. Beat Kitchen Harmonic Synth averages 4.8 out of 5 from 12 ratings, while Orbeat averages 5.0 from 6 ratings.
Do Beat Kitchen Harmonic Synth or Orbeat have ads?
Neither Beat Kitchen Harmonic Synth nor Orbeat shows ads.
Which is updated more often, Beat Kitchen Harmonic Synth or Orbeat?
Beat Kitchen Harmonic Synth ships an update every 3 days, and Orbeat every 6 days. Most recently, Beat Kitchen Harmonic Synth was updated on October 12, 2026 and Orbeat on October 14, 2026.

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