Decibel Meter Downloads & RevenueDecibel Meter: dB Noise Check · App Store
Not in any tracked top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
Developerhiroki kawamura
CategoryUtilities
PriceFree
Released
Rating★ 4.1 (10)
Version1.0.1
Age rating4+
First seen by us
12 Oct 2026
12 Oct 2026Installs (est.)1k+ worldwide
Decibel Meter: dB Noise Check update history & changes
Last change · 6 events since 11 Aug 2026Full timeline ↓📦Updated to version 1.0.2📦Updated to version 1.0.1🆕First spotted by AppInsider🆕Its developer released another app: Critical Thinking Trainer
Full timeline · 6 events
- 📦Decibel Meter: dB Noise Check updated to version 1.0.2【最新アップデート項目】
■ 使いやすさの改善
- 細かな改善と動作の安定化を行いました
引き続き「騒音計」をよろしくお願いします！
ご要望や不具合のご報告は、設定の「お問い合わせ」からお気軽にお送りください。 - 📦Decibel Meter: dB Noise Check updated to version 1.0.1【最新アップデート項目】
■ 使い心地の改善
- 測定を中断してアプリに戻った直後は、全画面広告が出ないようにしました
- 画面下のバナー広告の高さを先に確保し、読み込み時に画面がずれないようにしました
- 広告を非表示にするプランの購入画面を各言語で表示し、自動更新の条件を分かりやすくしました
引き続き「騒音計」をよろしくお願いします！
ご要望や不具合のご報告は、設定の「お問い合わせ」からお気軽にお送りください。 - 🆕Decibel Meter: dB Noise Check first spotted by AppInsiderJapan (found via developer)
- 🆕Decibel Meter: dB Noise Check: its developer released another app: Critical Thinking Trainer
- 📦Decibel Meter: dB Noise Check version 1.0No release notes
- 🆕Decibel Meter: dB Noise Check 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
4.1 ★
10 ratings
Measured
Decibel Meter: dB Noise Check on the App Store
App details
App ID
6795338789
Publisher
hiroki kawamura
On the store since
Aug 2026
Under a year
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
40 MB
Also listed in
Health & Fitness
Decibel Meter: dB Noise Check 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.
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.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.1 ★
10 ratings
Measured
Ratings
10
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.1★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
54/100
faster than 56% of Utilities 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 Decibel Meter: dB Noise Check
"Is the noise upstairs actually normal?" "Is this cafe quiet enough to work in?" Loud is subjective, so nobody agrees. A number settles it.
Decibel Meter shows how loud your surroundings are, in dB. Open it, press the button. That's the whole app.
◆ One button, one screen
・Press "Start measuring" and the current sound level fills the screen
・No setup, no account, no tutorial
・Stop when you're done, reset to start over
◆ Min, average and max at once
・The lowest, average and highest readings update live while you measure
・Tells apart a one-off bang from how loud the place actually is
◆ Plain language for every number
・Whisper / library / normal conversation / busy traffic / construction site / jet engine
・"65 dB" means nothing to most people, so we show what it sounds like instead
◆ Nothing is recorded or saved
・The microphone is used only to measure loudness
・No audio is recorded, stored on your device, or sent anywhere
・Microphone use ends the moment you stop measuring
◆ Made for moments like
・Wondering how loud the footsteps upstairs or the road construction outside really are
・Checking whether a cafe or library is quiet enough to focus in
・Making sure your speakers or instrument aren't bothering the neighbors
・Getting a feel for machine noise at work or road noise in the car
【About the readings】
This app uses your phone's microphone, so every reading is an approximation. Results vary with your device, its microphone, whether you use a case, and wind. It does not match the accuracy of dedicated measuring equipment and is not suitable for legal proceedings or official certification.
【About Premium】
The app is free to use and the measuring features are not limited in any way. The free version shows ads. Premium — an auto-renewing monthly subscription — removes all ads from the app.
・Payment is charged to your Apple ID account at confirmation of purchase
・The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period
・Manage or cancel in your device Settings → Apple ID → Subscriptions
・There is no free trial period
Privacy Policy: https://hecuhecu.github.io/apps/sound-meter/privacy/
Terms of Use: https://hecuhecu.github.io/apps/sound-meter/terms/
Decibel Meter shows how loud your surroundings are, in dB. Open it, press the button. That's the whole app.
◆ One button, one screen
・Press "Start measuring" and the current sound level fills the screen
・No setup, no account, no tutorial
・Stop when you're done, reset to start over
◆ Min, average and max at once
・The lowest, average and highest readings update live while you measure
・Tells apart a one-off bang from how loud the place actually is
◆ Plain language for every number
・Whisper / library / normal conversation / busy traffic / construction site / jet engine
・"65 dB" means nothing to most people, so we show what it sounds like instead
◆ Nothing is recorded or saved
・The microphone is used only to measure loudness
・No audio is recorded, stored on your device, or sent anywhere
・Microphone use ends the moment you stop measuring
◆ Made for moments like
・Wondering how loud the footsteps upstairs or the road construction outside really are
・Checking whether a cafe or library is quiet enough to focus in
・Making sure your speakers or instrument aren't bothering the neighbors
・Getting a feel for machine noise at work or road noise in the car
【About the readings】
This app uses your phone's microphone, so every reading is an approximation. Results vary with your device, its microphone, whether you use a case, and wind. It does not match the accuracy of dedicated measuring equipment and is not suitable for legal proceedings or official certification.
【About Premium】
The app is free to use and the measuring features are not limited in any way. The free version shows ads. Premium — an auto-renewing monthly subscription — removes all ads from the app.
・Payment is charged to your Apple ID account at confirmation of purchase
・The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period
・Manage or cancel in your device Settings → Apple ID → Subscriptions
・There is no free trial period
Privacy Policy: https://hecuhecu.github.io/apps/sound-meter/privacy/
Terms of Use: https://hecuhecu.github.io/apps/sound-meter/terms/
Latest updates
1.0.2
【最新アップデート項目】
■ 使いやすさの改善
- 細かな改善と動作の安定化を行いました
引き続き「騒音計」をよろしくお願いします！
ご要望や不具合のご報告は、設定の「お問い合わせ」からお気軽にお送りください。
1.0.1
【最新アップデート項目】
■ 使い心地の改善
- 測定を中断してアプリに戻った直後は、全画面広告が出ないようにしました
- 画面下のバナー広告の高さを先に確保し、読み込み時に画面がずれないようにしました
- 広告を非表示にするプランの購入画面を各言語で表示し、自動更新の条件を分かりやすくしました
引き続き「騒音計」をよろしくお願いします！
ご要望や不具合のご報告は、設定の「お問い合わせ」からお気軽にお送りください。
1.0
