Pitch Checker: Chromatic Tuner: iPhone vs Android
Pitch Checker: Chromatic Tuner gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Pitch Checker: Chromatic Tuner by Shigeki Matsunaka is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.5 ★
8.1k ratings, both stores
Measured
Best rank now
#51
iPhone · 
Music Free
Music FreeMeasured
App Store
App details
App ID
1490398292
Publisher
Shigeki Matsunaka
Publisher country
Japan
Minimum OS
iOS 17.0+
Content rating
4+
Languages
5
EN FR JA ZH ES
Size
57 MB
Google Play
App details
App ID
shigeki.work.musicalscalechecker
Publisher
松中誉生
Publisher country
Japan
Content rating
Everyone
Pitch Checker: Chromatic Tuner downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | 100+ | 100k+ |
| Google Play | 100+ | 100k+ Measured |
| Total | 500+ Confidence | 500k+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where Pitch Checker: Chromatic Tuner's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Pitch Checker: Chromatic Tuner makes money: subscriptions, one-off purchases and ads.
Ads · 6 ad networks
Ads
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.5 ★ | 7.6k |
| Google Play | 3.1 ★ | 459 3 written reviews |
| Both stores | 4.5 ★ weighted by ratings | 8.1k |
About Pitch Checker: Chromatic Tuner
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.
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.
Pitch Checker: Chromatic Tuner iPhone
音程チェッカー チューナーやボイストレーニングに。音階を表示
Pitch Checker: Chromatic Tuner gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Pitch Checker: Chromatic Tuner is #51 in Music Free in Japan and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperShigeki Matsunaka
CategoryMusic
PriceFree
Released
Rating★ 4.5 (7.6k)
Version12.3.0
Age rating4+
First seen by us 24 Sep 2026
24 Sep 2026Installs (est.)100k+ worldwide
Rating
4.5 ★
7.6k ratings
Measured
Best rank now
#51
Music FreeMeasured
Pitch Checker: Chromatic Tuner on the App Store
App details
App ID
1490398292
Publisher
Shigeki Matsunaka
Publisher country
Japan
Minimum OS
iOS 17.0+
Content rating
4+
Languages
5
EN FR JA ZH ES
Size
57 MB
Pitch Checker: Chromatic Tuner downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Pitch Checker: Chromatic Tuner's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Pitch Checker: Chromatic Tuner makes money: subscriptions, one-off purchases and ads.
Ads · 6 ad networks
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | MusicFree | #51 |
Apps near Pitch Checker: Chromatic Tuner on the chart
Music Free, around #51.
Ratings
App Store, worldwide.
Rating
4.5 ★
7.6k ratings
Measured
Ratings
7.6k
Measured
About Pitch Checker: Chromatic Tuner
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.
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.
Latest updates
12.3.0
Pitch Checker Android
Pitch Checker gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Pitch Checker is #99 in Music & Audio Free on Google Play in Japan and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperShigeki_m
CategoryMusic & Audio
PriceFree
Released
Installs100k+
Rating★ 3.1 (459)
Updated
Content ratingEveryone
Rating
3.1 ★
459 ratings
Measured
Best rank now
#99
Music & Audio FreeMeasured
Pitch Checker on Google Play
App details
App ID
shigeki.work.musicalscalechecker
Publisher
松中誉生
Publisher country
Japan
Content rating
Everyone
Pitch Checker downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where Pitch Checker's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Pitch Checker makes money: subscriptions, one-off purchases and ads.
Ads · 6 ad networks
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Music & AudioFree | #99 |
Apps near Pitch Checker on the chart
Music & Audio Free, around #99.
Ratings
Google Play, worldwide.
Rating
3.1 ★
459 ratings
Measured
Ratings
459
Measured
Written reviews
3
Measured
About Pitch Checker
The app analyzes real-time audio from the microphone and displays information such as musical scale, pitch, octave, frequency, and waveform.
■ Usage Examples
- Measure vocal range
- Practice absolute pitch
- Determine the musical scale (pitch detection) of a song
- Vocal exercises
- Karaoke practice
- Correction of tone deafness
- Frequency measurement
- Voice training
- Basic instrument tuning (as a tuner)
- Do, Re, Mi detection
You can pause the analysis with a tap, allowing you to review the results at your own pace. The display also supports notations like low A, mid 2 A, hihi A, etc.
■ How to Use
Simply launch the app, and it will measure the pitch of sounds captured by the microphone, whether from voice or instruments. To avoid picking up small sounds and noise, slide the "Microphone Sensitivity" bar on the upper left side of the screen upward.
■ Settings
From the gear icon in the top right corner, you can access the following settings:
- Toggle between sharp and flat notations
- Switch the display notation to a larger format in the center (Do, Re, Mi, CDEFGAB)
- Set the reference pitch
- Adjust the pitch acquisition speed
■ FAQ
Q. I want to measure the vocal range.
A. The app also displays ranges like hihi A or lowlow A. Feel free to use them.
Q. The pitch is displayed even when it's quiet.
A. Due to very small noise, pitch may be displayed even in completely quiet places. To avoid picking up noise, slide the "Microphone Sensitivity" bar next to the pitch display upward to ignore small sounds.
Q. I want to use it as a tuner.
A. You can use it without any specific settings, but changing the display notation from "Do, Re, Mi" to "CDEFGAB" in the center is more convenient. Press the gear icon in the top right corner, then tap the right side of "Display notation" under "Large display notation."
■ Other Information
Permissions:
- Microphone: Used to analyze audio from the microphone
- Siri & Search, Mobile 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.
■ Usage Examples
- Measure vocal range
- Practice absolute pitch
- Determine the musical scale (pitch detection) of a song
- Vocal exercises
- Karaoke practice
- Correction of tone deafness
- Frequency measurement
- Voice training
- Basic instrument tuning (as a tuner)
- Do, Re, Mi detection
You can pause the analysis with a tap, allowing you to review the results at your own pace. The display also supports notations like low A, mid 2 A, hihi A, etc.
■ How to Use
Simply launch the app, and it will measure the pitch of sounds captured by the microphone, whether from voice or instruments. To avoid picking up small sounds and noise, slide the "Microphone Sensitivity" bar on the upper left side of the screen upward.
■ Settings
From the gear icon in the top right corner, you can access the following settings:
- Toggle between sharp and flat notations
- Switch the display notation to a larger format in the center (Do, Re, Mi, CDEFGAB)
- Set the reference pitch
- Adjust the pitch acquisition speed
■ FAQ
Q. I want to measure the vocal range.
A. The app also displays ranges like hihi A or lowlow A. Feel free to use them.
Q. The pitch is displayed even when it's quiet.
A. Due to very small noise, pitch may be displayed even in completely quiet places. To avoid picking up noise, slide the "Microphone Sensitivity" bar next to the pitch display upward to ignore small sounds.
Q. I want to use it as a tuner.
A. You can use it without any specific settings, but changing the display notation from "Do, Re, Mi" to "CDEFGAB" in the center is more convenient. Press the gear icon in the top right corner, then tap the right side of "Display notation" under "Large display notation."
■ Other Information
Permissions:
- Microphone: Used to analyze audio from the microphone
- Siri & Search, Mobile 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.
What's new in 2.5.0
Bug fixes