FretSketch vs Tonality Visualizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FretSketch
This app serves as a portable chord dictionary for guitar, standard ukulele, and baritone ukulele. It offers over 500 chords with fingering details and audio playback, organized by harmonic family or root.
- Chord reference for guitar, ukulele, baritone ukulele
- Over 500 chords
- Organized by harmonic family and root
- Exact fingering and alternatives
- Audio playback of chords
- Free to download
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FretSketch is your pocket chord reference for guitar, standard ukulele and baritone ukulele. Explore over 500 chords, organized by harmonic family within a key or in a reference chart by root. Check exact fingering, often including alternatives, and hear what a chord should sound like. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Tonality Visualizer
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Tonality Visualizer is an interactive polar-pitch map that displays musical notes on a rotating disk. You can connect a MIDI keyboard or open a MIDI file — every note appears in real time. The app helps you see harmony, motion, and chord relationships, even without formal music theory. Main Features •MIDI Input: visualize notes directly from your keyboard or MIDI device. •MIDI File Playback / Trainer Mode: play or practice chord by chord. •Live Sound Option: enable/disable the built-in synth for input playback. •Physics-based Disk Rotation: the disk moves naturally according to musical torque. •Simple UI: switch between water-fixed / disk-fixed anchors, toggle UI visibility, bilingual JP/EN. Perfect for music learners, creators, and anyone who wants to “see” sound. Privacy No data collection. All processing happens locally on your device. License Open-source under the MIT License. Source code available on GitHub. Supported Formats •.mid / .midi files (Format 0 / 1) •CoreMIDI device input
Screenshots
Verdict
The clearest difference is in-app purchases: Tonality Visualizer at none against FretSketch's 2. On price, update cadence, ads 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. FretSketch sells 2 in-app purchases, starting at $0.99 per month. Tonality Visualizer asks for nothing beyond the download.
FretSketch ships an update weekly, Tonality Visualizer fortnightly. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.
| Parameter | FretSketch | Tonality Visualizer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 25 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Hive 604 Software Inc | Yusuke Yoshida |
In-app purchases
FretSketch
- Full Monthly Subscription7 Days trial$0.991 Month
- Full Yearly Subscription1 Month trial$9.991 Year
Tonality Visualizer
No in-app purchases
Questions
Is FretSketch free?
Is Tonality Visualizer free?
Do FretSketch or Tonality Visualizer have ads?
Which is updated more often, FretSketch or Tonality Visualizer?
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