Cantus vs Jazzlore Chords
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cantus
This interactive tool helps musicians explore harmony and chord voicings on a virtual piano. It allows users to visualize how notes move within chords, understand modal relationships, and develop a feel for harmony through focused practice.
- Interactive chord and voicing exploration
- Piano keyboard visualization
- Modal and scale-based harmony practice
- Voice-leading movement analysis
- Tone.js audio playback
- Account-free operation
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Cantus - Voicing Lab is an interactive harmony and chord-voicing tool by Nathaniel School of Music for pianists, composers, producers, and music theory students. Explore how notes move inside chords, hear voicings in context, and study color, tension, and modal relationships from the keyboard. Cantus is designed as a focused practice lab: pick a sound, inspect the voice leading, and build intuition for how harmony feels under your hands. FEATURES * Interactive chord and voicing explorer * Piano keyboard visualization * Modal and scale-based harmony practice * Voice-leading movement and pinboard-style comparison * Tone.js audio playback * Self-hosted fonts and bundled web assets * Works without an account BY NATHANIEL SCHOOL OF MUSIC Built for practical harmony learning, composition practice, and deeper chord fluency.
Jazzlore Chords
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The chords every jazz musician should know, drawn and played. Most chord apps are encyclopedias — thousands of chords, hundreds of variations, an entry for every alteration you'll never use. Jazzlore Chords is the opposite: a focused reference for the chords that actually appear on every page of every real book. The ones you need to recognize on sight, hear in your inner ear, and voice without thinking. Both notations, side by side. Cmaj7 and C△. C-7 and Cm7. We show you both because the jazz world uses both, and pretending otherwise is how students get confused at jam sessions. Audio for every voicing. Tap to hear the chord played cleanly, in a register that lets you sing the changes back. Staff notation. See the chord written out, not just labelled. Reading is part of the practice. Clean, distraction-free interface. Large, legible, dark by default. Made to sit on top of the piano while you work. No accounts, no ads, no tracking, no analytics. The app does one thing — show you the chord, sound the chord, get out of the way. Part of the Jazzlore family of jazz reference apps. Free, open source, ad-free, made for musicians.
Screenshots
Verdict
Cantus and Jazzlore Chords are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Cantus | Jazzlore Chords |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 3 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Zachariah | Aurelien Fontaine |
In-app purchases
Cantus
No in-app purchases
Jazzlore Chords
No in-app purchases
Questions
Is Cantus free?
Is Jazzlore Chords free?
Do Cantus or Jazzlore Chords have ads?
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