Cantus vs Prog Metronome
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.
Prog Metronome
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Metronome for musicians who wish to practice to complex rhythmic ideas without fiddling around in DAWs. Features: - Polyrhythm and polymeter - Metric modulations and BPM changes - Any tuplet and subdivision - Nested pattern groupings and repeats - Per-beat volume and sound - Project save and export - Custom sound import - Custom color themes
Screenshots
Verdict
The clearest difference is update cadence: Cantus at every 5 days against Prog Metronome's every 2 weeks. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Cantus ships an update every 5 days, Prog Metronome every 2 weeks. Both last shipped on October 31, 2026.
| Parameter | Cantus | Prog Metronome |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days — better | Every 2 weeks |
| 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 | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Zachariah | Zeyu Chen |
In-app purchases
Cantus
No in-app purchases
Prog Metronome
No in-app purchases
Questions
Is Cantus free?
Is Prog Metronome free?
Do Cantus or Prog Metronome have ads?
Which is updated more often, Cantus or Prog Metronome?
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