Pitch Checker Downloads & RevenuePitch Checker: Chromatic Tuner · App Store
Pitch Checker: Chromatic Tuner is #44 in Music Free in Japan and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperShigeki Matsunaka
CategoryMusic
PriceFree
Released
Rating★ 4.6 (23)
Version12.4.2
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)500k+ worldwide
Pitch Checker: Chromatic Tuner update history & changes
Last change · 30 events since 7 Dec 2019Full timeline ↓✏️New iPad screenshots✏️New screenshots📦Updated to version 12.4.2📦Updated to version 12.4.1🆕Its developer released another app: Pitch Checker: Watch Tuner📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider
Full timeline · 30 events
- ✏️Pitch Checker: Chromatic Tuner: new iPad screenshots· JP
- ✏️Pitch Checker: Chromatic Tuner: new screenshots10 screenshots (was 8) · JP
- 📦Pitch Checker: Chromatic Tuner updated to version 12.4.2・使い方の紹介を更新し、各機能を確認しやすくしました。
・音域の共有画面と、音名の表示を改善しました。 - ✏️Pitch Checker: Chromatic Tuner: description updated· IN
- ✏️Pitch Checker: Chromatic Tuner: new screenshots7 screenshots (was 6) · IN
- 📦Pitch Checker: Chromatic Tuner updated to version 12.4.1• Pro users can now choose Light, Dark, or System appearance.
• Share your measured vocal range as an image and save it to Photos.
• Improved the comparison and sharing buttons in range history, plus visibility in Light mode.… more - ✏️Pitch Checker: Chromatic Tuner: new iPad screenshots· JP
- ✏️Pitch Checker: Chromatic Tuner: new screenshots8 screenshots (was 8) · JP
- 📦Pitch Checker: Chromatic Tuner updated to version 12.4.0・音域を測定し、最高音・最低音を保存できるようになりました。
・保存した音域を履歴のグラフで振り返れるようになりました。
・過去の測定結果を音域画面に重ねて表示できるようになりました。 - 📦Pitch Checker: Chromatic Tuner: now updating weekly4 updates in 30 days, after a quiet two months
- ✏️Pitch Checker: Chromatic Tuner: description updated· JP
- ✏️Pitch Checker: Chromatic Tuner: new iPad screenshots· JP
- ✏️Pitch Checker: Chromatic Tuner: new screenshots8 screenshots (was 7) · JP
- 📦Pitch Checker: Chromatic Tuner updated to version 12.3.7・音域を測定し、最高音・最低音を保存できるようになりました。
・保存した音域を履歴のグラフで振り返れるようになりました。
・過去の測定結果を音域画面に重ねて表示できるようになりました。 - ✏️Pitch Checker: Chromatic Tuner: new iPad screenshots· JP
- ✏️Pitch Checker: Chromatic Tuner: new screenshots7 screenshots (was 7) · JP
- 📦Pitch Checker: Chromatic Tuner updated to version 12.3.5iPhone DuoとiPad向けのApp Storeスクリーンショットを更新しました。
- 🆕Pitch Checker: Chromatic Tuner: its developer released another app: Pitch Checker: Watch Tuner
- ✏️Pitch Checker: Chromatic Tuner: description updated· JP
- ✏️Pitch Checker: Chromatic Tuner: new iPad screenshots· JP
- ✏️Pitch Checker: Chromatic Tuner: new screenshots7 screenshots (was 7) · JP
- 📦Pitch Checker: Chromatic Tuner updated to version 12.3.4• Screenshots on supported iPhones now include the app icon and name.
• Improved reference pitch editing. - ✏️Pitch Checker: Chromatic Tuner: new iPad screenshots· JP
- ✏️Pitch Checker: Chromatic Tuner: new screenshots7 screenshots (was 7) · JP
- 📈Pitch Checker: Chromatic Tuner entered the top 100Top Grossing · Music · FR
- 📈Pitch Checker: Chromatic Tuner charting in a new countryFrance
- 📈Pitch Checker: Chromatic Tuner charting in a new countryIndia
- 🆕Pitch Checker: Chromatic Tuner first spotted by AppInsider#37 in Top Free · Music · Japan
- 📦Pitch Checker: Chromatic Tuner version 12.3.0No release notes
- 🆕Pitch Checker: Chromatic Tuner released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.6 ★
23 ratings
Measured
Best rank now
#44
Music FreeMeasured
New ratings a week
47
▲ +59% vs the 2 weeks before
Measured
Pitch Checker: Chromatic Tuner on the App Store
App details
App ID
1490398292
Publisher
Shigeki Matsunaka
On the store since
Dec 2019
6 years on the store
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
5
EN FR JA ZH ES
Size
61 MB
Also listed in
Utilities
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. 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: 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.
In-app revenue
Worldwide, what users spend in Pitch Checker: Chromatic Tuner before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: Subscription-led
How Pitch Checker: Chromatic Tuner makes money: subscriptions, one-off purchases and ads.
SubscriptionsIn-app purchasesAds · 6 ad networks
Subscriptions
/mo
of revenue
Ads
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Ad Hiding Plan+Graph Function subscription | |
| 2 | Ad Hiding Plan+Graph Function subscription |
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | MusicFree | #44 |
Apps near Pitch Checker: Chromatic Tuner on the chart
Music Free, around #44.
Ratings
App Store, worldwide.
Rating
4.6 ★
23 ratings
Measured
Ratings
23
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
47
▲ +59% vs the 2 weeks before
Recent ratings
4.5★
vs 4.5★ lifetime
Review momentum
88/100
faster than 92% of Music apps
Growing fastest in Japan ▲ +52%
New ratings by country (2)
| Country | New ratings a week | Share | Last 2 weeks vs the 2 before |
|---|---|---|---|
| Japan | 46 | 97% | ▲ +52% |
 India | 1.2 | 3% | – |
App Store ratings in the countries we track, 4-week average.
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: Chromatic Tuner
The app analyzes real-time audio from your microphone and displays musical note, pitch, octave, frequency, and waveform information.
■ 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.
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. Tap “Measure vocal range” in the Range tab to measure and save your highest and lowest notes. Review your saved results in the history graph. Extended notations such as hihi A and lowlow A are also supported.
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://pitchchecker.app/terms/
For bug reports or inquiries about the app, use the contact form on our official website:
https://pitchchecker.app/en/
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.
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. Tap “Measure vocal range” in the Range tab to measure and save your highest and lowest notes. Review your saved results in the history graph. Extended notations such as hihi A and lowlow A are also supported.
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://pitchchecker.app/terms/
For bug reports or inquiries about the app, use the contact form on our official website:
https://pitchchecker.app/en/
Feel free to use this app on media platforms such as TV.
Latest updates
12.4.2
・使い方の紹介を更新し、各機能を確認しやすくしました。
・音域の共有画面と、音名の表示を改善しました。
12.4.1
• Pro users can now choose Light, Dark, or System appearance.
• Share your measured vocal range as an image and save it to Photos.
• Improved the comparison and sharing buttons in range history, plus visibility in Light mode.
12.4.0
・音域を測定し、最高音・最低音を保存できるようになりました。
・保存した音域を履歴のグラフで振り返れるようになりました。
・過去の測定結果を音域画面に重ねて表示できるようになりました。
Store changes
What Pitch Checker: Chromatic Tuner changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New iPad screenshots
New screenshots
10 screenshots (was 8)
Description updated
