# Pitch Checker: Chromatic Tuner — Chromatic Tuner & Voice Pitch

> Real-time audio analysis for musical notes, pitch, frequency, and metronome practice. (iPhone/iPad app by Shigeki Matsunaka.)

- Source: https://appshunter.io/ios/app/pitch-checker-chromatic-tuner/id1490398292 (this page in markdown: same URL + `.md`)
- Developer: [Shigeki Matsunaka](https://appshunter.io/developer/1490398291)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 4.60/5 from 574 App Store ratings · 45 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 55 MB
- Languages: European Spanish, American English, Japanese, Chinese (Simplified, China), French (France)
- Released: 2019-12-07
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pitch-checker-chromatic-tuner/id1490398292/reviews.md

## What is Pitch Checker?

The app analyzes real-time audio from your microphone and displays musical note, pitch, octave, frequency, and waveform information.

It also includes a Metronome feature (Beta), allowing you to set the tempo and practice with sound and vibration cues.

■ Usage Examples
- Measure vocal range
- Practice absolute pitch
- Detect the musical notes of a song (pitch detection)
- Vocal exercises
- Karaoke practice
- Improve pitch accuracy
- Measure frequency
- Voice training
- Basic instrument tuning (use it as a tuner)
- Do, Re, Mi note detection
- Rhythm practice using the metronome

You can pause the analysis with a tap, allowing you to review the results at your own pace. The display also supports notations such as low A, mid2 A, hihi A, etc.

■ How to Use
Simply launch the app, and it will automatically measure the pitch of sounds captured by the microphone — whether voice or instruments. To avoid picking up small sounds and background noise, slide the “Microphone Sensitivity” bar in the upper-left corner upward.

The metronome can be used by simply setting your desired tempo.

■ Settings
Tap the gear icon in the top-right corner to access the following settings:
- Toggle between sharp and flat notation
- Change the large center display notation (Do, Re, Mi / C, D, E, F, G, A, B)
- Set the reference pitch
- Adjust pitch detection speed
- Set the metronome tempo

■ FAQ
Q. I want to measure my vocal range.
A. The app displays extended ranges such as hihi A and lowlow A for your reference.

Q. Pitch is displayed even when it’s quiet.
A. Even in very quiet environments, tiny background noise may be detected.
To prevent this, slide the “Microphone Sensitivity” bar upward to ignore softer sounds.


Q. I want to use it as a tuner.
A. No special settings are required. However, switching the large center display from "Do, Re, Mi" to "C, D, E, F, G, A, B" may be more convenient.
Tap the gear icon and change the “Large Display Notation” setting.

■ Other Information
Permissions:
- Microphone: Used to analyze audio input
- Siri & Search, Cellular Data: Used for AdMob advertisements

Terms of use can be found here:
https://shigeki.work/pitchchecker/termsofuse

For bug reports or inquiries about the app, contact via the app's settings (bug report or inquiry) or email support (replace the at symbol with @): support at shigeki.work.

Feel free to use this app on media platforms such as TV.

## Key features

- Real-time audio analysis
- Musical note and pitch display
- Frequency and waveform visualization
- Metronome with tempo control
- Vocal range measurement
- Instrument tuning assistance

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Ad Hiding Plan+Graph Function | $3.99 | per month |
| Ad Hiding Plan+Graph Function | $39.99 | per year |


## What do users think of Pitch Checker?

Overall sentiment: mixed

**Pros**

- 🎶 Accurate pitch recognition
- 💡 Useful for learning music
- 🎤 Excellent microphone sensitivity
- ✨ Simple and easy to use
- 🎵 Helps with singing practice
- 🚀 Instant frequency display
- 👍 Great for checking notes
- 💯 Best pitch app for some
- 🤩 Broad pitch detection range
- 💖 Very useful app

**Cons**

- 🚫 Unusable due to ads
- 🔞 Inappropriate ads displayed
- 🐛 Pitch measurement issues
- 🔇 Microphone not responding
- ⚠️ Ad sensitivity to background noise
- 🫙 App doesn't detect anything
- 😵 Pitch jumps around
- 🤷‍♀️ App doesn't work
- 🪫 App not working
- 🕳️ Pitch detection issues
- 📉 Pitch flutters back and forth
- 🫥 Pitch measurement inaccurate

**Commonly reported bugs**

- Banner of naked pictures across the top
- Full of scam ads now
- 音程を測定できなくなった (Pitch measurement stopped working)
- マイクがあまり反応しなくなってしまった (Microphone not responding well)
- Penis Adverts - not appropriate
- When it works most of the time it doesn’t
- マイクの設定を有効にするのに時間がかかった (Took time to enable microphone settings)
- アプリが使用できない (App cannot be used)
- Often doesn't show pitch despite picking up audio
- 測れる音域について (About the measurable pitch range)
- 使えない (Cannot be used)
- マイク感度を高くするとノイズに弱い (Weak against noise when microphone sensitivity is high)
- This App has such a great microphone even with my door closed it can hear from downstairs!
- Doesn’t pitch vocal fry
- Doesn’t work at all
- tracks you
- App works well but can’t change language
- Doesn’t work
- アイディア最高！ピッチのok判定は甘すぎかも (Idea is great! OK judgment for pitch might be too lenient)
- ピアノを弾いた時に弾いた音より1オクターブ上の音で表示されてしまいます (When playing piano, it displays one octave higher than the played note)
- ファ#が表示されない (F# is not displayed)
- ファ#の#表示 (F# sharp display)

**Most requested features**

- Display highest recorded note
- Ability to control measurement start time
- Recording of measured sounds
- Support for movable do (solfege)
- Option to change key for solfege
- Adjustable OK判定 range
- Support for wind instruments
- Add more free features
- Option to select vocal register
- Change language to English

## Recent user reviews (10 of 45)

All indexed reviews: https://appshunter.io/ios/app/pitch-checker-chromatic-tuner/id1490398292/reviews.md

### 2/5 — Interesting, but can’t read the Japanese fonts.

*2026-08-01*

App seems pretty good but despite changing both note displays to CDEFGAB I still get large Japanese characters on the range function.

**Developer response:** Thanks for your feedback!
This issue has been fixed in the latest update. Please update the app and check again.

### 3/5 — Flutters

*2026-06-11*

I wanted to use it to check pitch when playing chords on ukulele, but it flutters back and forth and doesn’t settle. (Admittedly, that could be my playing.) Also, there is a banner of naked pictures across the top.

### 4/5 — 自分は最高音hihihihiF

*2026-05-29*

自分でも驚きました！こんな声が出せるんだなと思えば正直自分が怖いです！(笑笑)次はhihihihiF以上を出せるように頑張ります！！あと自分が今まで出した最高音を表示できるようにして欲しいです！！

### 1/5 — Full of scam ads now

*2026-05-25*

Garbage

### 5/5 — 최고

*2026-05-25*

요즘 광고로 넘 힘들지만 그거 빼고는 최곱니다.

### 4/5 — 自分は最高音hihihihiDでした！！

*2026-05-22*

自分でも驚きました！こんな声が出せるんだなと思えば正直自分が怖いです！(笑笑)次はhihihihiD以上を出せるように頑張ります！！

### 1/5 — 音程を測定できなくなった

*2026-05-13*

違う音を出していてもD#9付近をずっと上がったり下がったりしてまともに使えるものではなくなった。以前まではちゃんと測定できていたのだけど

### 5/5 — I’m famous now

*2026-04-22*

I can sing

### 1/5 — Bad

*2026-03-19*

This used to be a great app until they ruined it with ads you cannot get rid of. Now, it’s unusable.

### 1/5 — Needs to be removed

*2026-03-10*

They run porn banners across the top of the screen

## Frequently asked questions about Pitch Checker

### What does this app do?

This app analyzes real-time audio from your microphone to display musical note, pitch, octave, frequency, and waveform information. It also includes a metronome feature for tempo practice with sound and vibration cues.

### How can I use this app for vocal exercises or measuring my vocal range?

The app displays extended vocal ranges such as hihi A and lowlow A, making it suitable for measuring your vocal range. You can also use it for vocal exercises and karaoke practice to improve your pitch accuracy.

### Can I use this app as a tuner for my instruments?

Yes, you can use this app as a basic instrument tuner. No special settings are required, but switching the large center display to 'C, D, E, F, G, A, B' notation might be more convenient for tuning.

### How do I adjust the microphone sensitivity?

To avoid picking up small sounds and background noise, slide the 'Microphone Sensitivity' bar in the upper-left corner upward. This will help the app ignore softer sounds and focus on the intended audio input.

### What are the customization options for the display and metronome?

You can customize the display notation between sharp and flat, and choose between 'Do, Re, Mi' or 'C, D, E, F, G, A, B' for the large center display. The metronome allows you to set your desired tempo and practice with sound and vibration cues.

## Version history (last 5 releases)

### 12.2.0 — 2026-08-26

Added Recording Feature!

### 12.1.0 — 2026-08-15

Added Recording Feature!

### 12.0.8 — 2026-08-14

Added Recording Feature!

### 12.0.7 — 2026-08-08

Added Recording Feature!

### 12.0.6 — 2026-08-08

Added Recording Feature!

## Apps similar to Pitch Checker

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Pitch Pro Tuner & Metronome](https://appshunter.io/ios/app/pitch-pro-tuner-and-metronome/id1169667039) | 4.6 (2,682) | Free | Music |
| [Tone - Learn Perfect Pitch!](https://appshunter.io/ios/app/tone-learn-perfect-pitch/id1139019670) | 4.5 (10,268) | Free | Music |
| [Sing Whiz - Vocal Range Test](https://appshunter.io/ios/app/sing-whiz-vocal-range-test/id6478636110) | 3.6 (113) | Free | Music |
| [Perfect Pitch - Learn to Sing](https://appshunter.io/ios/app/perfect-pitch-learn-to-sing/id6737916437) | 4.5 (391) | Free | Music |
| [Nail the Pitch - Vocal Monitor](https://appshunter.io/ios/app/nail-the-pitch-vocal-monitor/id1486640549) | 4.5 (1,243) | Free | Music |
| [OnPitch - Vocal Pitch Monitor](https://appshunter.io/ios/app/onpitch-vocal-pitch-monitor/id1212118228) | 4.5 (517) | $3.99 | Music |

## More apps by Shigeki Matsunaka

- [Simplest Push-Ups Counter](https://appshunter.io/ios/app/simplest-push-ups-counter/id1490426505)
- [InstantMemo](https://appshunter.io/ios/app/instantmemo/id1499441936)
- [CoolPallet シンプルなカラーパレット](https://appshunter.io/ios/app/coolpallet/id1505777495)
- [Simple Multiple Counter](https://appshunter.io/ios/app/simple-multiple-counter/id1506946553)
- [筋トレタイマー 毎日の筋トレに。](https://appshunter.io/ios/app/id1518620688)

All apps by Shigeki Matsunaka: https://appshunter.io/developer/1490398291

## Related topics

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*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 2026-08-27.*