# Decibel Meter: MnmlDB — Sound Level, SPL & Noise dB

> Sound Level, SPL & Noise dB (iPhone/iPad app by Systhetics.)

- Source: https://appshunter.io/ios/app/decibel-meter-mnmldb/id6811780840 (this page in markdown: same URL + `.md`)
- Developer: [Systhetics](https://appshunter.io/developer/1856445836)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 4 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Spanish
- Released: 2026-10-23
- Data updated: 2026-10-25

## What is Decibel Meter?

Measure sound levels clearly with MnmlDB, a clean and focused decibel meter for iPhone.

View real-time dB levels, follow changes over time, and inspect the measurements that matter without a cluttered interface.

Whether you're checking the noise in a room, comparing sound levels, monitoring music or equipment, or simply curious about how loud your surroundings are, MnmlDB gives you an easy way to measure and document sound.

LIVE SOUND MEASUREMENT
• Real-time decibel level
• Live sound level graph
• Minimum and maximum levels
• Leq average sound level
• C Peak measurement
• Measurement duration

A, C & Z FREQUENCY WEIGHTING
Choose between A, C and Z weighting depending on the type of sound measurement you need.

FAST & SLOW TIME WEIGHTING
Switch between Fast and Slow response modes to control how quickly the displayed sound level reacts to changes.

CALIBRATION
Adjust the calibration offset to better match a reference sound level meter or account for differences between devices.

SAVE YOUR MEASUREMENTS
Keep measurement sessions for later and review their level history, minimum, maximum, average and peak values.

EXPORT RESULTS
Create a clear measurement report or export session data as CSV when you need to keep, share or analyze your results elsewhere.

PRIVATE BY DESIGN
Microphone audio is analyzed on your device for sound-level measurement and is not recorded.

BUILT TO STAY OUT OF THE WAY
MnmlDB focuses on the measurement itself: clear readings, useful controls and a minimal interface without unnecessary distractions.

Please note that measurements made using an iPhone microphone can vary between devices and environments. MnmlDB is intended as a practical sound-level measurement tool and should not replace a certified sound level meter where formally calibrated measurements are required.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $1.99 | one-time |


## Is Decibel Meter safe?

Not enough ratings yet to assess Decibel Meter.

## Is Decibel Meter legit?

Decibel Meter: MnmlDB appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Decibel Meter is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.1 — 2026-10-24

No release notes.

## More apps by Systhetics

- [LoFi Music Radio: Lilo](https://appshunter.io/ios/app/lofi-music-radio-lilo/id6755799765)
- [7 Minute Vocal Warm-Up](https://appshunter.io/ios/app/7-minute-vocal-warm-up/id6774113388)
- [Guitar Tuner: MnmlTuna](https://appshunter.io/ios/app/guitar-tuner-mnmltuna/id6799511639)
- [Metronome: MnmlMetro](https://appshunter.io/ios/app/metronome-mnmlmetro/id6810107839)
- [Magic 8 Ball Oracle](https://appshunter.io/ios/app/magic-8-ball-oracle/id6812612140)

All apps by Systhetics: https://appshunter.io/developer/1856445836

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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 2026-10-25.*