Harmonizer vs Musyc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harmonizer
This app helps infants develop perfect pitch by playing Shepard tones, aiding in pitch identity development. It also facilitates the study of chord relationships and displays the pitch of your singing.
- Shepard tone playback
- Pitch identity development
- Chord relationship study
- Vocal pitch display
- Infant music education
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See and hear how music fits together. Harmonizer turns musical relationships into a colorful, interactive grid. Tap a hexagon to hear a note, or tap the triangle between three notes to play a major or minor chord. Sing or play a single note on an instrument, and watch the detected pitch light up. EXPLORE NOTES AND CHORDS Discover how neighboring notes connect through perfect fifths, major thirds, and minor thirds. Major and minor chords form triangles, making harmony something you can see, hear, and explore with your fingers. SEE YOUR VOICE Use the microphone to highlight the pitch you sing or play. Listen to a note, try matching it with your voice, and explore the connection between sound and color. CHOOSE YOUR LABELS Show note names or Movable Do syllables, with your choice of tonic. Keep labels visible, show them only when notes are active, or hide them to focus on the colors and sounds. EXPLORE YOUR WAY Choose from playing, pitch detection, or a mode that listens when you stop playing. Adjust the grid size to suit your screen and how you like to interact. HEAR HARMONY DIFFERENTLY Harmonizer uses Shepard tones—layered sounds that emphasize a note’s identity without a distinct octave. Every hexagon with the same note name produces the same sound. For curious beginners, students, teachers, and musicians, Harmonizer offers a hands-on way to explore pitch, chords, and musical patterns. No music theory knowledge is needed to start: touch a note and listen. Pitch detection requires microphone access.
Musyc
Transform touch gestures into music by drawing shapes and interacting with bouncing sounds. Explore a vast library of unique instruments and innovative physical tools to create and mix your own audio compositions. Record, export, and share your musical creations in high quality.
- Draw shapes to create music
- 88 unique instruments
- Physical and music tools
- Audio track mixer
- 2 effect channels with 5 effects
- User sound kit with sample import
- Real-time audio recording
- Video recording and export
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Draw shapes, watch them bounce and collide, and listen: your music comes to life. Musyc turns physics into sound. No keyboard, no scores, no music theory — just drop objects on the screen and the ultra-realistic physics engine plays them for you. Every collision triggers a sound, every composition becomes a living, moving artwork. Electronic and acoustic, all sounds have been specifically created and produced at Fingerlab studio. Graphic design by Jonas Eriksson. Musyc is free to play with. A single In-App purchase, Musyc Full Version, unlocks everything forever: unlimited songs, audio export, all the soundkits, all the physics shapes, the motion recorder and custom user soundkits. FEATURES • Ultra-realistic physics engine • High quality sound engine • 22 instruments across multiple soundkits • Advanced physics objects (planet, black hole, modulator...) • Physics sequencer and motion recorder • Tracks audio mixer (level, pitch, length, pan, mute) • 2 effect channels (Delay, Overdrive, Reverb, Compressor...) • Real-time audio recording and export • Import your own sounds and build custom soundkits From Fingerlab, Apple Design Award winner (DM1 - The Drum Machine). Questions or feedback? We'd love to hear from you: contact@fingerlab.net Stay tuned! The Fingerlab Team
Screenshots
Verdict
The clearest difference is in-app purchases: Harmonizer at none against Musyc's 5. Musyc's advantage is review sentiment (78% vs 45%) and update cadence (every 2 months vs every 33 months). 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
Both are free to download. Musyc sells 5 one-off in-app purchases. Harmonizer asks for nothing beyond the download.
Musyc holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: Musyc has 83 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 45% of Harmonizer's written reviews are positive against 78% of Musyc's.
Harmonizer ships an update every 33 months, Musyc every 2 months. Both last shipped on November 1, 2026.
| Parameter | Harmonizer | Musyc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (16 ratings) | 4.5 (83 ratings) — better |
| Positive reviews | 45.5% of reviews | 78.0% of reviews — better |
| Number of ratings | 16 | 83 — better |
| Update frequency | Every 33 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew McLaughlin | Fingerlab |
Customer experience
Harmonizer
Musyc
Bugs and requests
Harmonizer
Not enough reviews yet to summarise bugs or requests.
Musyc
Reported bugs
3 issues- Crashes when trying to export/share
- Audio issues on older devices
- Freezes and UI problems in the tutorial
Requested features
7 requests- MIDI implementation
- Audiobus support
- More sequence mix rows
- Custom sound samples and synth engine
- Ability to export videos
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- Phaser effect
- Improved sharing/collaboration features
In-app purchases
Harmonizer
No in-app purchases
Musyc
- More Soundkits$3.99
- Additional shapes$3.99
- Motion Recorder$3.99
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- USER SOUNDKITS$3.99
- Full Version$9.99









