# decibella 2: Sound Level Meter — Decibel & Frequency Analyzer

> Decibel & Frequency Analyzer (iPhone/iPad app by Jisu Jung.)

- Source: https://appshunter.io/ios/app/decibella-2-sound-level-meter/id6768519741 (this page in markdown: same URL + `.md`)
- Developer: [Jisu Jung](https://appshunter.io/developer/1731788096)
- Category: Utilities, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 53 MB
- Languages: American English, French (France), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-07-22
- Data updated: 2026-11-09

## What is decibella 2?

Decibella 2: Sound Level Meter & Decibel Meter

Explore the sounds around you with Decibella 2, a portable noise meter and sound analyzer for your phone or tablet. Measure everyday sound levels in decibels (dB), follow changes over time, and compare low, mid and high frequencies in one easy-to-use app.

At home, in an office, library, café or on public transport, turn curiosity about your acoustic environment into clear visual information.

REAL-TIME SOUND MEASUREMENT
Tap the microphone button to start. Watch the animated meter, current dB value, average (AVG) and maximum (MAX). The average accounts for sound energy and measurement duration to summarize your session.

TIME AND FREQUENCY GRAPHS
Use dB/Time to follow sound-level changes. Switch to dB/Freq to explore 11 frequency bands labeled from 32 Hz to 20 kHz, including separate 15K and 20K bands. Live bars show the current spectrum, while gray markers show retained band maxima. The measurable range depends on your device's microphone.

SOUND GUIDE
Relate measured levels to familiar everyday sounds. Clear examples, readable text and a highlighted row help you understand the approximate meaning of a noise level.

UP TO 100 MEASUREMENT RECORDS
Review session duration, maximum and average dB in Records, with dates and times shown in your current language and regional format. Eligible sessions lasting at least one second are saved when measurement stops. Keep the latest 100 records; each new record beyond the limit automatically replaces the oldest.

MICROPHONE CALIBRATION
Adjust the dB offset from -20.0 to +20.0 in 0.1 dB steps. Fine-tune readings against a suitable reference meter.

MADE FOR PHONES AND TABLETS
Responsive cards, graphs, text and controls adapt to the screen. Choose a light or dark theme and use the app in English, Korean, Japanese, Simplified Chinese, Traditional Chinese, French or Spanish.

A PLAYFUL VIEW OF SOUND
Watch a small rocket respond to sound and travel toward the moon. It adds a visual touch to everyday sound exploration.

ACCESS AND MEASUREMENT NOTES
Basic measurement sessions are limited to 30 seconds. Earning a reward by watching a video ad unlocks longer measurements, Sound Guide and record saving/viewing for two hours. An internet connection and an available ad are required for this access.
Measurement requires microphone permission and runs while the app is active; leaving the app or locking the screen stops it.

AD BREAKS AND PRIVACY
Measurement pauses for video ads. On return, review the retained graphs, readings and elapsed time; tap the microphone to start again. Two-hour access does not remove banner ads in Settings. Advertising consent choices are available where required.

Decibella 2 is for everyday reference and entertainment. Readings vary with the microphone, device and calibration. It does not replace certified professional or industrial sound-level equipment.

Download Decibella 2 and explore everyday sound with a pocket-sized decibel meter.

Made with love in Canada.

## Is decibella 2 safe?

Not enough ratings yet to assess decibella 2.

## Is decibella 2 legit?

decibella 2: Sound Level Meter appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for decibella 2 is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### decV2.1.0 — 2026-11-06

• Improved rewarded-ad preparation when returning to the app and after two-hour access expires.
• Improved recovery after changing advertising privacy choices.
• Videos start only after you choose to watch an ad.

### decV2.0.9 — 2026-10-19

- UI/UX improvements
- Performance improvements
- Minor bug fixes
- Supports English, Korean, Japanese, Simplified Chinese, Traditional Chinese, French, and Spanish.

### decV2.0.8 — 2026-09-26

- UI/UX improvements
- Performance improvements
- Minor bug fixes
- Supports English, Korean, Japanese, Simplified Chinese, Traditional Chinese, French, and Spanish.

### decV2.0.3 — 2026-09-16

- UI/UX improvements
- Performance improvements
- Minor bug fixes
- Supports English, Korean, Japanese, Simplified Chinese, Traditional Chinese, French, and Spanish.

### decV2.0.0 — 2026-09-05

- Calibration Improvement
- UI/UX Improvements 
- Performance improvements
- Minor bug fixes

## Apps similar to decibella 2

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [BRC Classic](https://appshunter.io/ios/app/brc-classic/id1348359736) | 5.0 (1) | Free | Utilities |
| [NoiseTrace - Decibel Meter](https://appshunter.io/ios/app/noisetrace-decibel-meter/id6773603791) | 5.0 (1) | Free | Utilities |
| [NoiseProof: dB Meter & Log](https://appshunter.io/ios/app/noiseproof-db-meter-and-log/id6787817333) | 5.0 (1) | Free | Utilities |
| [Spell check ENG](https://appshunter.io/ios/app/spell-check-eng/id6746528487) | — | Free | Utilities |
| [dB Meter - Noise Level Meter](https://appshunter.io/ios/app/db-meter-noise-level-meter/id6756863216) | — | Free | Utilities |
| [ipTIME Bench EndPoint](https://appshunter.io/ios/app/iptime-bench-endpoint/id1321723581) | — | Free | Utilities |

## More apps by Jisu Jung

- [Find Four (Find 4 differences)](https://appshunter.io/ios/app/find-four-find-4-differences/id6478101361)
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- [Triple Sum](https://appshunter.io/ios/app/triple-sum/id6743101133)
- [Sky Peacemaker - Finger Force](https://appshunter.io/ios/app/sky-peacemaker-finger-force/id6744907473)
- [Simply Multi Timer](https://appshunter.io/ios/app/simply-multi-timer/id6746514607)

All apps by Jisu Jung: https://appshunter.io/developer/1731788096

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-09.*