# Pitch Diagram: Vocal Tuner — Audio graphs & singing tools > Real-time pitch visualization and audio analysis tool for musicians. (iPhone/iPad app by Daniele Roncaglioni.) - Source: https://appshunter.io/ios/app/pitch-diagram-vocal-tuner/id6744618279 (this page in markdown: same URL + `.md`) - Developer: [Daniele Roncaglioni](https://appshunter.io/developer/1808482301) - Category: Music - Price: Free with in-app purchases (on sale, was $1.99) - Rating: 3.70/5 from 3 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 9 MB - Languages: American English - Released: 2025-04-30 - Data updated: 2026-08-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/pitch-diagram-vocal-tuner/id6744618279/reviews.md ## What is Pitch Diagram? Pitch Diagram gives you real-time visual feedback on every note you sing or play. See your pitch as a smooth, scrolling graph, spot intonation issues instantly, and track your accuracy down to the cent. Whether you're refining vibrato, practicing scales, breaking down melodies, or tuning your instrument, Pitch Diagram is a mirror for your sound. 9 Tools for Musicians • Pitch Diagram (Mono) Real-time pitch graph for single-note music. See every note as a continuous trace. Record you session and export to MIDI. • Pitch Spectrogram (Poly) Detect multiple notes at once. Reveal chords, harmonies, and harmonic overtones in any musical passage. • Tuner Cent-accurate chromatic tuner showing the closest note, cents offset, and exact frequency. • Intonation Tracker See your intonation relative to the nearest note, measured in cents. Ideal for focused practice. • Spectrum Analyzer Full frequency spectrum visualization with logarithmic scale. • Tone Generator Generate reference tones by note or frequency. Sine, triangle, square, and sawtooth waveforms. • Keyboard Interactive piano keyboard with sampled instruments, visual feedback, and a compact transport bar for octave selection. • Interval Trainer Train in-key scale degree recognition against a chord progression. Leveled difficulty increases as you progress. • Solfege Trainer Same flow as Interval Trainer, but you sing the target degree while a pitch diagram tracks you. • Customize Your View - Switch between grid lines and piano roll background - Adjust visible octave range to match your voice or instrument - Toggle waveform strip for additional context - Transpose notes to any key - Set custom reference tuning - Switch between letter and solfege note labels • Free to Try - The first 10 minutes of usage are free and uninterrupted. - After that, you can use the app for free in 1-minute sessions. - Subscribe for uninterrupted access to everything. Built by a musician, for musicians. Feedback welcome, use the in-app Feedback button or email us. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Have questions or feedback? Contact us at roncaglionidaniele@proton.me ## Key features - Real-time pitch graph - Pitch spectrogram for polyphonic audio - Cent-accurate chromatic tuner - Intonation tracking - Spectrum analyzer - Tone generator with multiple waveforms - Customizable view options ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Unlimited Usage | $1.99 | per year | ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/pitch-diagram-vocal-tuner/id6744618279/reviews.md ### 5/5 — Great Tuner, Fantastic Learning/Teaching Tool *2026-01-23* The app receives regular updates that add cool new features! It’s quick and intuitive. Pitch diagram can be used for ear training to help with learning to match pitch, and for singers and wind players to help with note stability, and it provides a powerful visual framework for young learners. The developer has plans for more improvements I am happy to subscribe for the very reasonable rate! ### 5/5 — Great Tuner, Fantastic Learning/Teaching Tool *2025-11-21* The app has received several cool new features in a short time. Now it has polyphonic & accuracy modes, as well as transpose buttons for instruments that aren’t “concert-pitched”. It’s quick and intuitive, showing the pitch value over time on a scrolling x/y grid. Pitch diagram can be used for ear training to help with learning to match pitch, and for singers and wind players to help with note stability, and it provides a powerful visual framework for young learners. The developer has plans for more improvements I am happy to subscribe for the very reasonable rate! ### 5/5 — Great Tuner, Fantastic Learning/Teaching Tool *2025-10-26* This is an extraordinarily useful monophonic spectrographic tuner. Not only is it quick and intuitive as a general tuner, it is also versatile. The new Note Accuracy mode provides more precision for sources that are more stable. The regular pitch diagram can be used for ear training to help with matching pitch, and for singers and wind players to help with note stability, and it provides a powerful visual framework for young learners. I was happy to subscribe for the very reasonable rate! ### 5/5 — Great Tuner, Fantastic Learning/Teaching Tool *2025-09-02* This is an extraordinarily useful monophonic spectrographic tuner. Not only is it quick and intuitive as a general tuner, it is also versatile. The new Note Accuracy mode provides more precision for sources that are more stable. The regular pitch diagram can be used for ear training to help with matching pitch, and for singers and wind players to help with note stability, and it provides a powerful visual framework for young learners. I was happy to subscribe for the very reasonable rate. ### 5/5 — For everyone liking to sing/play music combining it with functional app and a firework of colors *2025-08-29, version 1.1.1* Fantastic app, use it all the time while singing. The visuals are just so cool! ### 5/5 — Very useful app *2025-08-28, version 1.1.1* Super intuitive, not sure why no other app shows notes like this. I use it all the time, to check my singing or even just for fun, to understand the pitch envelope of instruments or sounds ### 5/5 — Fantastic Learning/Teaching Tool *2025-08-27* This is an extraordinarily useful monophonic spectrographic tuner. Not only is it quick and intuitive as a general tuner, it is also versatile. It can be used for training to help with matching pitch, for singers and wind players to help with note stability, and it provides a powerful visual framework for young learners. I was happy to subscribe for the very reasonable rate. ### 5/5 — Fantastic Learning/Teaching Tool *2025-08-20* I have been long searching for a replacement for my favorite type of tuner. This is an impressive homage to another similar tuner. Although PitchDigramis strictly monophonic (the other was not),it has cleaner display with pitch lines that are easier to see. THANK YOU!!! ## Frequently asked questions about Pitch Diagram ### What is Pitch Diagram? Pitch Diagram provides real-time visual feedback on your singing or playing, displaying pitch as a smooth, scrolling graph. It helps identify intonation issues and track accuracy down to the cent. ### What tools does Pitch Diagram offer? It includes a real-time pitch diagram, a pitch spectrogram for polyphonic audio, a cent-accurate chromatic tuner, an intonation tracker, a spectrum analyzer, and a tone generator. ### Can I customize the view in Pitch Diagram? Yes, you can switch between grid lines and a piano roll background, adjust the visible octave range, toggle a waveform strip, transpose notes, set custom reference tuning, and switch between letter and solfege note labels. ### How does Pitch Diagram handle free usage? The first 10 minutes of usage are free and uninterrupted. After that, you can use the app in 1-minute sessions for free. ### What is the subscription plan for Pitch Diagram? There is an 'Unlimited Usage' subscription plan available for $1.99 per year, offering uninterrupted access to all features. ### What devices is Pitch Diagram available on? Pitch Diagram is available on iPhone and iPad devices. ### How often is Pitch Diagram updated? The app was last updated on March 21, 2026, indicating a commitment to ongoing development and improvements. ### Is Pitch Diagram suitable for beginners? With its visual feedback and tuning tools, Pitch Diagram can be beneficial for beginners looking to develop their ear and pitch accuracy, alongside experienced musicians. ## Version history (last 5 releases) ### 1.8.0 — 2026-05-15 - Keyboard: Playable piano-style keyboard with sampled instruments, visual feedback, a compact transport bar, and quick octave selection. - Interval Trainer: Practice hearing intervals in key over chord progressions, with stepped levels that get harder as you improve. - Solfege Trainer: Same kind of flow, but you sing the target scale degree while a live pitch diagram follows you. ### 1.7.0 — 2026-03-21 - Added audio playback to monophonic Pitch Diagram recordings. - Added MIDI export for recordings. - Added support for non-standard tuning. - Added Solfege note labels. - Added full-range mode to the polyphonic Pitch Spectrogram. - Added a per-screen settings page. ### 1.6.0 — 2026-02-22 Scrollable Piano Roll — The pitch diagram now scrolls vertically through the full note range. Auto-follows your pitch, with pinch-to-zoom between 1–3 octaves. Piano Keys Skin — Switch between grid lines and a piano keys background. Record & Replay — Record your pitch sessions, then scroll through the captured trace to review every note. Save recordings and revisit them anytime. Renamed Tools — "Pitch Density (Poly)" → Pitch Spectrogram (Poly). "Note Accuracy Diagram" → Intonation Tracker. ### 1.5.0 — 2026-01-22 - Added Spectrum and Tone Generator tools - Added Waveform strip to Mono and Poly tools - Increased Pitch Density (poly) sensitivity ### 1.4.0 — 2025-11-19 - Polyphonic Pitch Diagram Tool - Feedback button in settings ## Apps similar to Pitch Diagram | App | Rating | Price | Category | | --- | --- | --- | --- | | [Tutuner — Pitch tracking tuner](https://appshunter.io/ios/app/tutuner-pitch-tracking-tuner/id6447534878) | 5.0 (3) | Free | Music | | [PitchMonitor - Vocal Visual](https://appshunter.io/ios/app/pitchmonitor-vocal-visual/id6751228637) | — | Free | Music | | [iAnalyzer](https://appshunter.io/ios/app/ianalyzer/id335449113) | 4.0 (53) | Free | Music | | [Vocal Range Finder, Warm Up](https://appshunter.io/ios/app/vocal-range-finder-warm-up/id6503248997) | 4.7 (15) | Free | Music | | [Vocal Pitch Monitor Track Note](https://appshunter.io/ios/app/vocal-pitch-monitor-track-note/id6758098531) | 3.7 (3) | Free | Music | | [Pitchy - Sing On Pitch](https://appshunter.io/ios/app/pitchy-sing-on-pitch/id6749875369) | 4.5 (15) | Free | Music | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-01.*