Decibel Meter+ Sound Level dB Downloads & RevenueDecibel Meter+ Sound Level dB · App Store
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperKyu-Hee Jang
CategoryUtilities
PriceFree
Released
Rating★ 3.0 (2)
Version3.2.33
Age rating17+
First seen by us
23 Oct 2026
23 Oct 2026Decibel Meter+ Sound Level dB update history & changes
Last change · 6 events since 2 Nov 2021Full timeline ↓📦Updated to version 3.2.33📦Updated to version 3.2.32🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 6 events
- ✏️Decibel Meter+ Sound Level dB: app got bigger62 MB → 90 MB (+46%)
- 📦Decibel Meter+ Sound Level dB updated to version 3.2.33• Sound Noise Meter has been rebuilt on a newer, shared foundation; Start measuring and Session log work as before.
• The first time you open it after installing, the meter appears with less waiting.
• Where privacy choices apply in your region, you can reopen them from the Menu.
• Your calibration, Session log and settings carry over unchanged.… more - 📦Decibel Meter+ Sound Level dB updated to version 3.2.32• New Bass check: tap it under min/avg/max to see how the sound splits into bass, mid and treble, shown as relative shares from your phone mic.
• If the microphone sends no audio after you start, the app now says “No sound is reaching the app” instead of sitting at 0.0 dB.
• Your session list updates right after you tap “New session”.… more - 🆕Decibel Meter+ Sound Level dB first spotted by AppInsiderUnited States (found via developer)
- 📦Decibel Meter+ Sound Level dB version 3.2.31• Allow microphone access after tapping “Start measuring”, and the reading starts right then; no second tap needed.
• No full-screen ad appears on return from the microphone prompt or from Settings opened with “Open Settings” on the microphone-denied card. Other app returns may still show an ad.… more - 🆕Decibel Meter+ Sound Level dB 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
3.0 ★
2 ratings
Measured
Decibel Meter+ Sound Level dB on the App Store
App details
App ID
1593197145
Publisher
Kyu-Hee Jang
On the store since
Nov 2021
5 years on the store
Minimum OS
iOS 16.4+
iPhone 8 and later
Devices
iPhone · iPad
Content rating
17+
Languages
1
EN
Size
90 MB
Also listed in
Productivity
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
3.0 ★
2 ratings
Measured
Ratings
2
Measured
About Decibel Meter+ Sound Level dB
Decibel Meter: Sound Level dB turns your iPhone microphone into a live sound level meter. Press the big Start button under the gauge (or tap the gauge) and see how loud it is in decibels, with the running minimum, average and maximum right below.
▶ Measure
• Radial gauge from 0 to 120 dB with a Fast (125 ms) response, so the needle follows the sound instead of flickering
• dBA, dBC or dBZ: switch the frequency weighting from the chip at the top
• Min, average (energy average, not a plain mean of the numbers) and max for the session
• A one-line verdict that puts the level in everyday terms, from quiet library to hearing damage zone
• An OVER warning when the microphone is saturated, so a flat ceiling reading is never mistaken for a real value
▶ Pause and see your summary
Pause after 30 seconds or more and a summary card shows the duration, average, max, dose and 8-hour TWA of the standard you chose. Resume carries on with the same session; New session files it into your log and starts clean. The card keeps the numbers from the moment you paused, even if you change the weighting or the standard afterwards.
▶ Noise dosimeter
• Two standards: WHO (85 dBA, 3 dB exchange, 8 h) and OSHA (90 dBA, 5 dB exchange, 8 h)
• Daily dose %, 8-hour TWA and time left until 100 %
• The dose always uses the A-weighted level, whatever weighting is on the gauge
• Switching the standard shows that standard's own total for the whole session
• 7-day dose chart, and an alert with a short vibration when the level stays at or above the criterion for 10 seconds
▶ Logs
• Noise events: every stretch above your threshold that lasts 5 seconds or more is logged with its peak and average, and the list can be shared as text
• Session log with LAeq, Lmax, L10 and L90 for sessions of 30 seconds or more, exportable as CSV
• A summary report across all sessions, unlocked by watching a short video
▶ Calibration
Phone microphones differ. Adjust the offset from −20 to +20 dB against a reference meter, or use Quiet Cal for a quick approximate reference in a quiet room. The app tells you when the room was too loud for that reference to be trusted.
▶ Good to know
• The screen stays on while measuring, and an optional auto-stop ends a run after 4 hours
• Measuring pauses when you leave the app and resumes when you come back; it does not measure in the background
• No audio is saved; the app only computes levels from the live microphone signal
• A phone is not a certified sound level meter. Use the readings for everyday checks and comparisons, not for legal or compliance measurements.
Handy for a noisy workplace, a concert, traffic outside the window, a neighbour's music, a classroom, or checking how loud your own speakers are.
▶ Measure
• Radial gauge from 0 to 120 dB with a Fast (125 ms) response, so the needle follows the sound instead of flickering
• dBA, dBC or dBZ: switch the frequency weighting from the chip at the top
• Min, average (energy average, not a plain mean of the numbers) and max for the session
• A one-line verdict that puts the level in everyday terms, from quiet library to hearing damage zone
• An OVER warning when the microphone is saturated, so a flat ceiling reading is never mistaken for a real value
▶ Pause and see your summary
Pause after 30 seconds or more and a summary card shows the duration, average, max, dose and 8-hour TWA of the standard you chose. Resume carries on with the same session; New session files it into your log and starts clean. The card keeps the numbers from the moment you paused, even if you change the weighting or the standard afterwards.
▶ Noise dosimeter
• Two standards: WHO (85 dBA, 3 dB exchange, 8 h) and OSHA (90 dBA, 5 dB exchange, 8 h)
• Daily dose %, 8-hour TWA and time left until 100 %
• The dose always uses the A-weighted level, whatever weighting is on the gauge
• Switching the standard shows that standard's own total for the whole session
• 7-day dose chart, and an alert with a short vibration when the level stays at or above the criterion for 10 seconds
▶ Logs
• Noise events: every stretch above your threshold that lasts 5 seconds or more is logged with its peak and average, and the list can be shared as text
• Session log with LAeq, Lmax, L10 and L90 for sessions of 30 seconds or more, exportable as CSV
• A summary report across all sessions, unlocked by watching a short video
▶ Calibration
Phone microphones differ. Adjust the offset from −20 to +20 dB against a reference meter, or use Quiet Cal for a quick approximate reference in a quiet room. The app tells you when the room was too loud for that reference to be trusted.
▶ Good to know
• The screen stays on while measuring, and an optional auto-stop ends a run after 4 hours
• Measuring pauses when you leave the app and resumes when you come back; it does not measure in the background
• No audio is saved; the app only computes levels from the live microphone signal
• A phone is not a certified sound level meter. Use the readings for everyday checks and comparisons, not for legal or compliance measurements.
Handy for a noisy workplace, a concert, traffic outside the window, a neighbour's music, a classroom, or checking how loud your own speakers are.
Latest updates
3.2.33
• Sound Noise Meter has been rebuilt on a newer, shared foundation; Start measuring and Session log work as before.
• The first time you open it after installing, the meter appears with less waiting.
• Where privacy choices apply in your region, you can reopen them from the Menu.
• Your calibration, Session log and settings carry over unchanged.
3.2.32
• New Bass check: tap it under min/avg/max to see how the sound splits into bass, mid and treble, shown as relative shares from your phone mic.
• If the microphone sends no audio after you start, the app now says “No sound is reaching the app” instead of sitting at 0.0 dB.
• Your session list updates right after you tap “New session”.
3.2.31
• Allow microphone access after tapping “Start measuring”, and the reading starts right then; no second tap needed.
• No full-screen ad appears on return from the microphone prompt or from Settings opened with “Open Settings” on the microphone-denied card. Other app returns may still show an ad.
Store changes
What Decibel Meter+ Sound Level dB changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
62 MB → 90 MB (+46%)
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