Harmonique vs Etherpad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harmonique
Instantly play chords and melodies without needing music theory knowledge. This touch instrument offers major and minor chord buttons, allowing you to improvise melodies over sustained chords. Explore various musical patterns and access over 100 instruments.
- Instant chord and melody playing
- Drone mode for sustained chords
- Pattern performance with various styles
- 100+ instrument sounds
- Interactive music theory lessons
- Real-time key and chord display
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Play chords and melodies instantly — no music theory required. Harmonique is a touch instrument that makes harmony accessible. Two columns of chord buttons — major and minor — let you play any chord in any key. Drone a chord with a long press, then improvise melodies on the piano keys above it. FEATURES • Play chords instantly — major and minor columns derived from music theory, so everything sounds good together • Drone Mode — sustain any chord hands-free, switch chords with a tap • Perform Patterns — strum, arpeggiate, or block chords at any BPM with Folk, Pop Rock, Bossa Nova, and more • 100+ instruments — piano, harmonica, guitar, organ, strings, and the full General MIDI set • Tape Delay & Ghost Verb — warm analog echo and reverb with BPM sync • 7th Chords — one toggle for richer, jazzier harmony • Circle of Fifths — visual key picker that teaches you how keys relate • Interactive Lessons — learn chord progressions, borrowed chords, music theory basics, and how to use every feature • Key & Chord Display — see what you're playing in real time • Nashville Numbers — switch between Roman numerals and Nashville notation FREE TO START 5 instruments, drone mode, chord progressions lesson, and full chord/melody playback. Upgrade to unlock everything. BUILT FOR MUSICIANS Whether you're a songwriter sketching ideas, a student learning theory, or a performer looking for a portable chord instrument — Harmonique puts harmony at your fingertips.
Etherpad
Create evolving soundscapes and ambient textures with an intuitive touch-based music synthesizer. Explore generative music without needing music theory, perfect for relaxation or creative expression.
- Multi-touch synthesis
- Multiple sound presets
- Visual particle effects
- Effect overlays
- Scale selection
- Landscape & portrait modes
- Low-latency audio
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Etherpad is an expressive touch-based music synthesis instrument for iPhone, iPad and your Mac. Sweep your fingers across the screen to create evolving soundscapes, ambient drones, and generative textures. (AUv3 Beta support) Powered by the legendary Csound audio engine, Etherpad turns your device into a portable synthesizer that responds to every touch with rich, organic sound. No music theory required — just touch, listen, and explore. KEY FEATURES • Multi-touch synthesis — Each finger controls pitch and timbre independently • Distinct Soundscapes — Switch between evolving pad sounds and textures • Reactive Visuals — ripples, trails, rings, and column glow respond to every touch • 14 evolving sounds — from lush pads to Glass Choir, PWM Pad, and Morphwave • Advanced Scales & Tuning — Break out of standard keys and explore the Bohlen-Pierce scale, overtone series, pentatonics, and more • Jam Sessions — Load your own audio tracks directly into the app and play along with your creative flow • MIDI 2.0 — per-note expression and full MIDI support for connected controllers (Beta) • AUv3 plug-in — play Etherpad inside Logic Pro, GarageBand, AUM, and other hosts (Beta) • Ultra Low-latency audio — Built on Csound, the industry-standard audio engine PERFECT FOR • Ambient and drone musicians • Meditation and relaxation • Beginners exploring sound synthesis • Live performers and improvisers • Sound designers and experimental composers • Anyone curious about generative music Website: https://etherpad.app Touch the surface. Hear the universe.
Screenshots
Verdict
Harmonique and Etherpad both sit at 5.0 stars, but that hides the real split: 100% of Etherpad's written reviews are positive against 0% of Harmonique's. Etherpad also leads on in-app purchases (none vs 1) and update cadence (every 3 days vs every 10 days). Harmonique's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ads 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. Harmonique sells 1 one-off in-app purchase. Etherpad asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Harmonique against 4.9 for Etherpad. That said, the two scores are not equally well evidenced: Etherpad has 21 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 0% of Harmonique's written reviews are positive against 100% of Etherpad's.
Harmonique ships an update every 10 days, Etherpad every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Harmonique | Etherpad |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.9 (21 ratings) |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 21 — better |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 69 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | fourtrack.fm LLC | Dinesh Yadav |
Customer experience
Harmonique
Etherpad
In-app purchases
Harmonique
- Harmonique Lifetime Unlock$4.99
Etherpad
No in-app purchases









