ptune vs Cantus
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
ptune
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pTune is a fast, accurate polyphonic tuner built for guitar players who want to spend less time tuning and more time playing. POLYPHONIC TUNING Strum all six strings at once. pTune detects every string simultaneously and shows you exactly which ones need adjusting ā no more tuning string by string. CHROMATIC TUNER Need to tune any single note? The chromatic tuner detects any pitch with high precision and shows cents off perfect. BUILT-IN METRONOME A clean, precise metronome with adjustable tempo and time signature ā perfect for practice sessions. KEY FEATURES ⢠Polyphonic detection ā tune all strings in a single strum ⢠Chromatic mode for any instrument or alternate tunings ⢠Adjustable reference pitch (A = 415ā466 Hz) ⢠Custom tuning profiles ⢠Adjustable detection speed ⢠Built-in metronome with haptic feedback ⢠Clean, distraction-free dark interface ⢠Works offline ā no internet required ⢠No ads, no tracking, no account required PRIVACY FIRST pTune processes audio entirely on your device. Nothing is recorded, stored, or sent anywhere. The microphone is used solely for real-time pitch detection. Designed for acoustic and electric guitarists, beginners and pros alike.
Cantus
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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.
Screenshots
Verdict
The clearest difference is update cadence: ptune at daily against Cantus's every 5 days. Cantus's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ptune ships an update daily, Cantus every 5 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | ptune | Cantus |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily ā better | Every 5 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod ā better |
| Requires iOS | 17.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | BE MUHENDISLIK TICARET LIMITED SIRKETI | Jason Zachariah |
In-app purchases
ptune
No in-app purchases
Cantus
No in-app purchases








