Pitch Checker Downloads & RevenuePitch Checker: Watch Tuner · App Store & Google Play
13 days old
Pitch Checker: Watch Tuner gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Pitch Checker: Watch Tuner by Shigeki Matsunaka is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
Pitch Checker: Watch Tuner update history & changes
Last change · 19 events since 26 Apr 2020Full timeline ↓🆕iOSFirst spotted by AppInsider📦AndroidUpdated to version 12.4.2✏️AndroidNew screenshots📦AndroidUpdated to version 12.4.1✏️AndroidDescription updated📦iOSVersion 1.0.1🆕iOSReleased on the App Store🆕AndroidFirst spotted by AppInsider🆕AndroidReleased on Google Play
Full timeline · 19 events
- 🆕Pitch Checker: Watch Tuner first spotted by AppInsideriOS#25 in Top Paid · Music · Italy
- 📦Pitch Checker: Watch Tuner updated to version 12.4.2Android• Updated onboarding to introduce all app features.
• Improved vocal range sharing and note label display. - ✏️Pitch Checker: Watch Tuner: new screenshotsAndroid8 screenshots (was 8) · US
- 📦Pitch Checker: Watch Tuner updated to version 12.4.1Android• Choose Light, Dark, or System appearance.
• Share your measured vocal range as an image.
• Improved the comparison and sharing buttons in range history, plus visibility in Light mode. - ✏️Pitch Checker: Watch Tuner: description updatedAndroid· US
- ✏️Pitch Checker: Watch Tuner: new screenshotsAndroid8 screenshots (was 7) · US
- 📦Pitch Checker: Watch Tuner updated to version 12.3.7Android• Measure your vocal range and save your highest and lowest notes.
• View saved measurements in a vocal range history graph.
• Display a past measurement on the Range screen for comparison. - 📦Pitch Checker: Watch Tuner: now updating weeklyAndroid4 updates in 30 days, after a quiet two months
- 📦Pitch Checker: Watch Tuner updated to version 12.3.6AndroidFixed an issue where frequency labels on the tuner scale were clipped on some Android devices.
- 📦Pitch Checker: Watch Tuner version 1.0.1iOSUpdated localization settings so Japanese is included in the supported languages shown on the App Store.
- 🆕Pitch Checker: Watch Tuner released on the App StoreiOS
- 📦Pitch Checker: Watch Tuner updated to version 12.3.5AndroidFixed a crash that could occur when the graph automatically adjusted its pitch range.
- 📦Pitch Checker: Watch Tuner updated to version 12.3.3AndroidFixed an issue where editing the reference pitch could force it to 400 or 500 Hz and prevent entering the desired value.
- ✏️Pitch Checker: Watch Tuner: description updatedAndroid· US
- 📦Pitch Checker: Watch Tuner updated to version 12.3.2AndroidUpdated the Terms of Use and Privacy Policy links to the new official website.
- ✏️Pitch Checker: Watch Tuner: new screenshotsAndroid7 screenshots (was 4) · US
- 🆕Pitch Checker: Watch Tuner first spotted by AppInsiderAndroidJapan
- 📦Pitch Checker: Watch Tuner version 2.5.0AndroidBug fixes
- 🆕Pitch Checker: Watch Tuner released on Google PlayAndroid
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.5 ★
476 ratings, both stores
Measured
Best rank now
#64
App Store · 
Music Paid
Music PaidMeasured
New ratings a week
2.8
▼ -38% vs the 2 weeks before
Measured
App Store
App details
App ID
6824197458
Publisher
Shigeki Matsunaka
Publisher country
Japan
On the store since
Oct 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad · Watch
Content rating
4+
Languages
2
EN JA
Size
2 MB
Google Play
App details
App ID
shigeki.work.musicalscalechecker
Publisher
松中誉生
Publisher country
Japan
Content rating
Everyone
Pitch Checker: Watch Tuner downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | – |
| Google Play | 100+ | 100k+ Measured |
| Total | 100+ Confidence | 100k+ Confidence |
How this is calculated
App Store: 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: Watch 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
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: Watch 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.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | #64 Music Paid | 1 of 30 countries | – | – |
| Google Play | #95 Music & Audio Free | 1 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisNew ratings a week
2.8
▼ -38% vs the 2 weeks before
Written reviews a week
under 1
Google Play
Lifetime rating
3.1★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
17/100
faster than 10% of Music and audio apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 0.0 ★ | – |
| Google Play | 4.5 ★ | 476 3 written reviews |
| Both stores | 4.5 ★ weighted by ratings | 476 |
About Pitch Checker: Watch Tuner
A chromatic tuner and vocal pitch detector for Apple Watch. Sing or play a note and see its name, frequency, and tuning deviation on your wrist.
Pitch Checker uses your Apple Watch microphone to analyze sound in real time and show the note, octave, frequency, and pitch deviation in cents. Use it for vocal exercises, ear training, or basic instrument tuning.
FEATURES
• Live note detection from the built-in microphone
• A large note display with octave and frequency in Hz
• A cents indicator to see whether a note is sharp or flat relative to its reference
• CDEFGAB, Do Re Mi, and Japanese ドレミ note names
• Adjustable reference pitch: A4 from 430 to 450 Hz
• Microphone sensitivity control to ignore quieter sounds
• Tap the background to stop or resume measurement
• Settings saved on your Apple Watch
HOW TO USE
Open the app and allow microphone access. Sing or play one clear note near your watch. The detected note and frequency appear automatically.
Tap the note to change its notation. Open Settings to choose the reference pitch, or tap the microphone sensitivity control to adjust the minimum input volume.
If quiet background sounds trigger the display, raise the minimum input volume. For the clearest readings, use one note at a time in a quiet place.
MADE FOR APPLE WATCH
This is a separate, one-time-purchase Apple Watch app. It works without the Pitch Checker iPhone app or an iPhone subscription. Sound analysis takes place on your watch, and measurement does not require an internet connection.
No ads, subscriptions, or in-app purchases.
Requires watchOS 10 or later.
Microphone access is used for live sound analysis. Audio is not saved or uploaded by this app.
Support: https://pitchchecker.app/
Privacy policy: https://pitchchecker.app/privacy/
Terms of use: https://pitchchecker.app/terms/
Pitch Checker uses your Apple Watch microphone to analyze sound in real time and show the note, octave, frequency, and pitch deviation in cents. Use it for vocal exercises, ear training, or basic instrument tuning.
FEATURES
• Live note detection from the built-in microphone
• A large note display with octave and frequency in Hz
• A cents indicator to see whether a note is sharp or flat relative to its reference
• CDEFGAB, Do Re Mi, and Japanese ドレミ note names
• Adjustable reference pitch: A4 from 430 to 450 Hz
• Microphone sensitivity control to ignore quieter sounds
• Tap the background to stop or resume measurement
• Settings saved on your Apple Watch
HOW TO USE
Open the app and allow microphone access. Sing or play one clear note near your watch. The detected note and frequency appear automatically.
Tap the note to change its notation. Open Settings to choose the reference pitch, or tap the microphone sensitivity control to adjust the minimum input volume.
If quiet background sounds trigger the display, raise the minimum input volume. For the clearest readings, use one note at a time in a quiet place.
MADE FOR APPLE WATCH
This is a separate, one-time-purchase Apple Watch app. It works without the Pitch Checker iPhone app or an iPhone subscription. Sound analysis takes place on your watch, and measurement does not require an internet connection.
No ads, subscriptions, or in-app purchases.
Requires watchOS 10 or later.
Microphone access is used for live sound analysis. Audio is not saved or uploaded by this app.
Support: https://pitchchecker.app/
Privacy policy: https://pitchchecker.app/privacy/
Terms of use: https://pitchchecker.app/terms/
Pitch Checker: Watch Tuner App Store
13 days old
Pitch Checker: Watch Tuner gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Pitch Checker: Watch Tuner is #64 in Music Paid in Italy and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperShigeki Matsunaka
CategoryMusic
Price6.99 EUR
Released
Rating★ 0.0 (0)
Version1.0.1
Age rating4+
First seen by us 6 Nov 2026
6 Nov 2026Rating
0.0 ★
0 ratings
Measured
Best rank now
#64
Music PaidMeasured
Pitch Checker: Watch Tuner on the App Store
App details
App ID
6824197458
Publisher
Shigeki Matsunaka
Publisher country
Japan
On the store since
Oct 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad · Watch
Content rating
4+
Languages
2
EN JA
Size
2 MB
Pitch Checker: Watch 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. App Store 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: Watch 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
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: Watch 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 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Italy | MusicPaid | #64 |
Apps near Pitch Checker: Watch Tuner on the chart
Music Paid, around #64.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Pitch Checker: Watch Tuner
A chromatic tuner and vocal pitch detector for Apple Watch. Sing or play a note and see its name, frequency, and tuning deviation on your wrist.
Pitch Checker uses your Apple Watch microphone to analyze sound in real time and show the note, octave, frequency, and pitch deviation in cents. Use it for vocal exercises, ear training, or basic instrument tuning.
FEATURES
• Live note detection from the built-in microphone
• A large note display with octave and frequency in Hz
• A cents indicator to see whether a note is sharp or flat relative to its reference
• CDEFGAB, Do Re Mi, and Japanese ドレミ note names
• Adjustable reference pitch: A4 from 430 to 450 Hz
• Microphone sensitivity control to ignore quieter sounds
• Tap the background to stop or resume measurement
• Settings saved on your Apple Watch
HOW TO USE
Open the app and allow microphone access. Sing or play one clear note near your watch. The detected note and frequency appear automatically.
Tap the note to change its notation. Open Settings to choose the reference pitch, or tap the microphone sensitivity control to adjust the minimum input volume.
If quiet background sounds trigger the display, raise the minimum input volume. For the clearest readings, use one note at a time in a quiet place.
MADE FOR APPLE WATCH
This is a separate, one-time-purchase Apple Watch app. It works without the Pitch Checker iPhone app or an iPhone subscription. Sound analysis takes place on your watch, and measurement does not require an internet connection.
No ads, subscriptions, or in-app purchases.
Requires watchOS 10 or later.
Microphone access is used for live sound analysis. Audio is not saved or uploaded by this app.
Support: https://pitchchecker.app/
Privacy policy: https://pitchchecker.app/privacy/
Terms of use: https://pitchchecker.app/terms/
Pitch Checker uses your Apple Watch microphone to analyze sound in real time and show the note, octave, frequency, and pitch deviation in cents. Use it for vocal exercises, ear training, or basic instrument tuning.
FEATURES
• Live note detection from the built-in microphone
• A large note display with octave and frequency in Hz
• A cents indicator to see whether a note is sharp or flat relative to its reference
• CDEFGAB, Do Re Mi, and Japanese ドレミ note names
• Adjustable reference pitch: A4 from 430 to 450 Hz
• Microphone sensitivity control to ignore quieter sounds
• Tap the background to stop or resume measurement
• Settings saved on your Apple Watch
HOW TO USE
Open the app and allow microphone access. Sing or play one clear note near your watch. The detected note and frequency appear automatically.
Tap the note to change its notation. Open Settings to choose the reference pitch, or tap the microphone sensitivity control to adjust the minimum input volume.
If quiet background sounds trigger the display, raise the minimum input volume. For the clearest readings, use one note at a time in a quiet place.
MADE FOR APPLE WATCH
This is a separate, one-time-purchase Apple Watch app. It works without the Pitch Checker iPhone app or an iPhone subscription. Sound analysis takes place on your watch, and measurement does not require an internet connection.
No ads, subscriptions, or in-app purchases.
Requires watchOS 10 or later.
Microphone access is used for live sound analysis. Audio is not saved or uploaded by this app.
Support: https://pitchchecker.app/
Privacy policy: https://pitchchecker.app/privacy/
Terms of use: https://pitchchecker.app/terms/
Latest updates
1.0.1
Updated localization settings so Japanese is included in the supported languages shown on the App Store.
More from Shigeki Matsunaka
Pitch Checker Android
Pitch Checker gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Pitch Checker is #95 in Music & Audio Free on Google Play in Japan and charting in 1 of 23 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperShigeki_m
CategoryMusic & Audio
PriceFree
Released
Installs100k+
Rating★ 4.5 (476)
Updated
Content ratingEveryone
Rating
4.5 ★
476 ratings
Measured
Best rank now
#95
Music & Audio FreeMeasured
New ratings a week
2.8
▼ -38% vs the 2 weeks before
Measured
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 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Music & AudioFree | #95 |
Apps near Pitch Checker on the chart
Music & Audio Free, around #95.
Ratings
Google Play, worldwide.
Rating
4.5 ★
476 ratings
Measured
Ratings
476
Measured
Written reviews
3
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
2.8
▼ -38% vs the 2 weeks before
Written reviews a week
under 1
Google Play
Lifetime rating
3.1★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
17/100
faster than 10% of Music and audio apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Pitch Checker
The app analyzes real-time audio from the microphone and displays information such as musical scale, pitch, octave, frequency, and waveform.
■ Measure and Track Your Vocal Range
Tap “Measure vocal range” in the Range tab to measure your highest and lowest notes. Hold the same note for one second to register it, then save once both notes have been measured.
View your saved measurements in the history graph and look back at how your vocal range changes over time.
■ 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://pitchchecker.app/terms/
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.
■ Measure and Track Your Vocal Range
Tap “Measure vocal range” in the Range tab to measure your highest and lowest notes. Hold the same note for one second to register it, then save once both notes have been measured.
View your saved measurements in the history graph and look back at how your vocal range changes over time.
■ 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://pitchchecker.app/terms/
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 12.4.2
• Updated onboarding to introduce all app features.
• Improved vocal range sharing and note label display.
• Improved vocal range sharing and note label display.
Store changes
What Pitch Checker changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New screenshots
8 screenshots (was 8)
Description updated
New screenshots
8 screenshots (was 7)