# Decibel Kit: Noise Dosimeter

> dB Meter, Spectrum, Noise Dose

Canonical page: [https://chrome-stats.com/d/id6776589152](https://chrome-stats.com/d/id6776589152)

## Overview

- **ID:** `id6776589152`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Signet LLC
- **Category:** Utilities
- **Version:** 1.0.4
- **Last updated:** 2026-07-30
- **First published:** 2026-06-11
- **Size:** 21 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/decibel-kit-noise-dosimeter/id6776589152)
- **Website:** [https://signet.co.jp](https://signet.co.jp/)
- **Privacy policy:** [https://signet.co.jp/decibelkit/privacy](https://signet.co.jp/decibelkit/privacy)

## Description

Decibel Kit is a buy-once acoustic measurement kit that brings a sound level meter, spectrum analysis, a dosimeter and evidence reports together in one app. There is no subscription.

■ Live measuring is all free — and never stops
The dB meter, spectrum (FFT / RTA / octave bands / spectrogram), the NIOSH / OSHA dosimeter, the learning content and the camera dB overlay are free from the start, with no count or time limits.

■ One-time purchase, no subscription
"Pro" is yours forever after a single purchase. No monthly or yearly fees. We never take back a feature you have already unlocked. There is just one purchase screen, and you can close it anytime with the ×.

■ What Pro adds (keep it, prove it, export it)
• Save recordings and history (with audio)
• Export to PDF / CSV / WAV / HTML
• Save evidence photos and videos
• Save calibration profiles
• iCloud sync and Health integration
• Apple Pencil annotation, Before/After compare, trimming

■ Professional analysis
A / C / Z / B / ITU-R 468 weighting, Fast / Slow response, Leq, L10, L90, TWA, peak hold, 1/1 to 1/24 octave bands, adjustable ranges.

■ Numbers you can trust
Save device-specific calibration profiles for free, with a "±N dB" confidence range always on screen.

■ Strong as evidence
Photos and videos with dB, date/time and location burned in, your own notes, a tamper-evident SHA-256 hash, and a region-aware noise-regulation guide — all in one report. Great for neighbor, construction and workplace records.

■ Measure without stopping your music
Measure while music, AirPlay or Bluetooth keeps playing.

■ On iPhone, iPad and Mac
Universal. On large screens you can view the FFT / RTA / spectrogram side by side.

* This app provides hearing-safety guidance only and is not a medical device. It cannot be used for diagnosis or treatment.

## Rankings

- #1,443,761 — Overall

## Similar extensions and apps

- [DecibelLab: Sound Level Meter](https://chrome-stats.com/d/id6761004946)
- [dB Decibel: Sound Level Meter](https://chrome-stats.com/d/id6777625723) — 5.00 / 5
- [DecibelKit - Sound Meter](https://chrome-stats.com/d/id6759010452)
- [dB Meter - Sound Level Meter](https://chrome-stats.com/d/id6760597296)
- [Decibel Meter Studio](https://chrome-stats.com/d/id6775627368)
- [Decibel Meter dB: Sound Level](https://chrome-stats.com/d/id6759060208)
- [dB Meter Pro - Sound Level](https://chrome-stats.com/d/id6748346409)
- [Decibel - sound level meter](https://chrome-stats.com/d/id1485543216) — 4.60 / 5
- [Sound Meter: Noise & dB Meter](https://chrome-stats.com/d/id6504881928) — 4.30 / 5
- [Honest Decibel: Sound Meter](https://chrome-stats.com/d/id6762573414)
- [Sound Meter: dB Level Detector](https://chrome-stats.com/d/id6751549160)
- [Decibel: dB Sound Meter](https://chrome-stats.com/d/id1620285258) — 4.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6776589152)