About
Pitch Checker: Chromatic Tuner is a highly rated (4.7★) mobile and desktop app developed by Shigeki Matsunaka, designed to help singers and musicians detect, analyze, and improve their pitch in real time. Using your device's microphone, the app instantly identifies the musical note, octave, frequency, and waveform of any sound — whether it's your voice or an instrument. The app stands out for its exceptionally wide detection range, from A-1 to E10 (14 Hz to 21,500 Hz), covering frequencies well beyond the human hearing range, making it uniquely capable compared to most tuner apps. It displays extended vocal range notations (e.g., lowlow A, hihi A) to help singers map their full range. Key capabilities include real-time pitch detection with adjustable microphone sensitivity, support for both solfège (Do, Re, Mi) and letter notation (C, D, E, F, G, A, B), configurable reference pitch, and sharp/flat notation toggling. A built-in Metronome (Beta) lets users set tempo and practice rhythm with sound and vibration cues. Pitch Checker is used for vocal range measurement, absolute pitch training, song note detection, instrument tuning, karaoke practice, and voice training. Its pause-and-review feature lets users freeze the display to study results at their own pace. The app is free with optional in-app purchases and is available on iPhone, iPad, Mac, Apple Watch, and Apple TV.
Key Features
- Real-Time Pitch Detection: Instantly identifies musical note, octave, frequency, and waveform from microphone input with adjustable detection speed.
- Ultra-Wide Frequency Range: Detects pitches from 14 Hz to 21,500 Hz (A-1 to E10), covering far beyond the standard human hearing range.
- Vocal Range Viewer: Displays extended range notations like lowlow A and hihi A to help singers visualize and measure their full vocal range.
- Built-in Metronome: Set any tempo and practice with audible and vibration cues to improve rhythmic accuracy alongside pitch training.
- Customizable Settings: Toggle sharp/flat notation, switch between solfège and letter notation, set reference pitch, and fine-tune microphone sensitivity.
Use Cases
- Singers measuring and extending their vocal range using the extended notation display.
- Musicians tuning instruments by detecting the real-time frequency and note name of each string or key.
- Students and hobbyists practicing absolute pitch recognition by comparing heard notes to displayed results.
- Vocalists and karaoke enthusiasts improving pitch accuracy before or during performances.
- Music teachers and coaches demonstrating pitch concepts to students using the real-time waveform and note display.
Pros
- Exceptional Detection Range: Covers A-1 to E10, far exceeding competing tuner apps, making it useful for instruments and edge vocal registers.
- Highly Rated & Easy to Use: 4.7 stars from 500+ reviews; launches immediately and auto-detects pitch with no complex setup required.
- Free with Core Features Unlocked: The primary pitch detection and tuning features are available for free, making it accessible to all users.
- Multi-Platform Support: Works across iPhone, iPad, Mac, Apple Watch, and Apple TV, providing flexibility for different practice environments.
Cons
- Apple Ecosystem Only: Only available on Apple devices (iOS, macOS); Android and Windows users cannot access the app.
- Metronome Still in Beta: The metronome feature is labeled as Beta, meaning it may have limited functionality or occasional bugs.
- Background Noise Sensitivity: In quiet environments, even tiny ambient sounds can trigger pitch detection, requiring manual sensitivity adjustment.
Frequently Asked Questions
What platforms is Pitch Checker available on?
Pitch Checker is available on iPhone, iPad, Mac, Apple Vision Pro, Apple Watch, and Apple TV via the App Store.
Can I use Pitch Checker to measure my vocal range?
Yes. The app displays extended range notations such as lowlow A and hihi A, allowing singers to map pitches both above and below the standard vocal range.
How do I use it as an instrument tuner?
No special setup is needed. Simply launch the app and play your instrument. For easier reading, switch the large display notation from solfège (Do, Re, Mi) to letter notation (C, D, E, F, G, A, B) in the settings.
Why does the app show a pitch even in a quiet room?
Very faint background noise can still trigger detection. Slide the Microphone Sensitivity bar upward in the top-left corner to increase the threshold and filter out ambient sounds.
Is Pitch Checker free?
The core app is free to download and use. Optional in-app purchases are available for additional features or to remove ads.
