PNO Book vs Resonance Cube
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PNO Book
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PNO Books is an ever-growing collection of chord progression books designed for musicians who love learning by ear and enjoy discovering new sounds. Whether you're looking for progressions inspired by specific songs, genres, or artists—or want to explore unique piano theory insights—PNO Books makes it easy. Each book includes clear, highlighted chords and accompanying video lessons, giving you a visual and practical way to bring progressions to life on the keys. Perfect for Pianists Who: Learn best by ear and love experimenting with new sounds Enjoy learning from YouTube but want structured, ready-to-play progressions Want fresh chord ideas inspired by real music to spark creativity Prefer a no-fluff, straight-to-the-point approach to playing With new books and videos added regularly, PNO Books is your go-to resource for expanding your chord vocabulary and refining your sound. Download now and start playing!
Resonance Cube
Create evolving musical compositions by tapping a cube to add bouncing notes. Customize the key, chord, and instrument to shape the sound. Explore automatic sequences or free play with up to 24 voices.
- Interactive music generation
- Customizable key, chord, and instrument
- Vibraphone, piano, Rhodes, gamelan, pad, crystal bowl sounds
- Automatic chord sequences
- Free Play mode
- Up to 24 melodic and pad voices
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Resonance Cube is a perpetual music machine inspired by modern composers. Tap the cube to add balls that bounce and play — each one a note in a living, evolving chord. As the music plays, the colors respond. Choose your key, chord, and instrument to shape the sound. Pick from vibraphone, piano, Rhodes, gamelan, warm pad, or crystal bowl. Let a curated chord sequence play automatically, or explore freely in Free Play mode. Add up to 24 voices — 12 melodic, 12 pad — and watch the composition build. When the cube is full, tapping begins to subtract, winding the music back down.
Screenshots
Verdict
The clearest difference is device support: PNO Book at 3 against Resonance Cube's 1. PNO Book also leads on iOS requirement (14.0.0 vs 16.6). On price, update cadence, ads and in-app purchases 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.
PNO Book ships an update weekly, Resonance Cube every 2 weeks. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.
| Parameter | PNO Book | Resonance Cube |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 58 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Reginald Watkins | DERRICK LAWWAH CHANSEW |
In-app purchases
PNO Book
No in-app purchases
Resonance Cube
No in-app purchases
