Comparison

Cantus vs Jazzlore Scales

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

Head to head
About

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.

Highlights
  • 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
Features
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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.

About

Jazzlore Scales

Features
Read full description

The scales every jazz musician should know, drawn and played. Most scale apps are exhaustive — every mode of every key, every exotic scale from every tradition, presented as a database to scroll through. Jazzlore Scales is the opposite: a focused reference for the scales that actually get played over jazz changes. Dorian, mixolydian, melodic minor, the bebop scales, the altered scale, the symmetric scales — the vocabulary you need at your fingertips when you're soloing or comping. - Which scale, which chord. Every scale shows the chord context where it lives. Look up the scale to find the chord; look up the chord to find the scale. - Audio for every scale. Hear it played cleanly, in a register that lets you sing it back. Internalize the sound, not just the spelling. - Staff notation. See the scale written out, not just named. Reading the intervals matters. - 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. Open the app, look up the scale, hear it, close the app, go practice. Part of the Jazzlore family of jazz reference apps. Free, open source, ad-free, made for musicians.

Screenshots

Cantus3 screens
Jazzlore Scales4 screens

Verdict

The call

Cantus and Jazzlore Scales 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Cantus versus Jazzlore Scales: the parameters behind the verdict, then further details
ParameterCantusJazzlore Scales
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size3 MB8 MB
Age rating4+4+
DeveloperJason ZachariahAurelien Fontaine

In-app purchases

None

Cantus

No in-app purchases

None

Jazzlore Scales

No in-app purchases

Questions

Is Cantus free?
Cantus is free to download, with no in-app purchases.
Is Jazzlore Scales free?
Jazzlore Scales is free to download, with no in-app purchases.
Do Cantus or Jazzlore Scales have ads?
Neither Cantus nor Jazzlore Scales shows ads.

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