---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Decibel Meter Sound Level dB"
developer_entity: "汇杭 钟"
bundle_id: "com.appstudio.decibel"
app_store_id: "1609178369"
category: "Utilities"
primary_platform: "ios"
primary_monetization: "Subscription"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2026-06-02"
report_date: "2026-09-01"
last_verified: "2026-09-01T00:00:00.000Z"
report_version: "2.5"
total_reviews: 24
overall_rating: 4.4
confidence: "low"
confidence_score: 0.2
data_age_days: 30
momentum_velocity: "maintenance"
intelligence_version: 3
tags: ["utilities", "subscription", "mobile app", "app review", "app analysis", "safety", "officers,", "acoustic"]
canonical_url: "https://marlvel.ai/apps/decibel-meter-sound-level-db"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# Decibel Meter Sound Level dB Intelligence Report

## TL;DR {#tldr}

- **Category**: Utilities · Subscription
- **Signal**: Rating 4.42

> **TL;DR:** Decibel Meter Sound Level dB is a utilities app by 汇杭 钟, rated 4.42/5 by 24 users, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Decibel Meter Sound Level dB is a utilities app by 汇杭 钟.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 4.42/5 (24 reviews) |
| **Category** | Utilities |
| **Developer** | 汇杭 钟 |
| **Pricing** | Subscription |
| **Platforms** | iOS |
| **Confidence** | Low (0.2/1.0) |
| **Data Age** | 30d |

## Metadata & Market Performance
- **Publisher:** 汇杭 钟
- **Category:** Utilities
- **Target Audience:** Safety officers, acoustic engineers, and individuals requiring documented evidence for noise complaints.
- **Platforms:** iOS
- **Version Reviewed:** 2.5
- **Report Date:** 2026-09-01
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.2/1.0)
- **App Store ID (iOS):** 1609178369
- **Bundle ID:** com.appstudio.decibel
- **Performance Trend:** Stable
- **Data Window:** Analysis based on signals collected up to 2026-09-01

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** Decibel Meter Sound Level dB is a professional sound-level and noise-dosimeter tool for iPhone, designed for acoustic engineers and safety officers.
**Why users hire it:** It replaces expensive, dedicated hardware for OSHA-compliant noise monitoring and evidence collection, removing the financial barrier for field-based acoustic documentation.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] Noise Dosimeter:** Tracks daily noise exposure dose according to OSHA and NIOSH standards.
  * *User Intent:* Users are motivated by consistent progression and daily incentives.
- **[Differentiator] Video Evidence Recording:** Records video with real-time decibel level overlay for documentation.
- **[Standard] PDF Reporting:** Generates professional reports with charts and exposure data.
  * *User Intent:* Users seek enhanced value through premium features.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

Decibel Meter Sound Level dB targets the professional utility niche, maintaining a 4.4-star rating across 24 total ratings. The lack of recent updates (91 days) suggests a focus on maintenance rather than aggressive market share expansion.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Subscription
- **Tiers:** Free download, Premium subscription for advanced features
- **Analysis:** The freemium model gates professional-grade analysis and reporting tools behind a subscription to monetize safety and engineering professionals.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- OSHA-compliant dosimeter tracking provides a defensible barrier against casual sound-level apps

**Growth Levers:**
- Integrating direct cloud-storage sync for PDF reports would reduce evidence-transfer friction for professionals


<!-- /section:swot -->
## Recent Changes (v2 → v3) {#recent-changes}

The app has transitioned from a feature-expansion phase to a defensive maintenance posture, prioritizing the preservation of background-mode logging against potential OS-level privacy changes.

**Overall trend**: Stable
**Compared at**: 2026-09-01

### High-impact changes
- **[Shifted] Strategic focus shift** (positioning)
- **[Added] New threat identification** (swot)

### Medium-impact changes
- **[Improved] Clarified background logging utility** (features)

<!-- section:whats-new -->
## What's New

- **Latest (v2.5, 3 months ago):** Introduced professional tools including a NIOSH/OSHA-compliant Noise Dosimeter, PDF reporting, video recording with decibel overlays, a spectrum analyzer, and GPS tagging.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Maintenance) {#momentum}

- Shipped professional dosimeter and PDF tools.
- Quiet 3 months, no feature releases.

> **Cadence:** 1 total versions · 1 majors in last 6 months · 91 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

Decibel Meter Sound Level dB is an utilities app.
It holds a 4.42/5 rating from 24 reviews.

<!-- speakable-start -->
> **Bottom Line:** Decibel Meter Sound Level dB maintains a strong professional niche through OSHA-compliant features, but the 91-day update gap risks user churn if OS-level microphone permissions shift. Prioritizing stability ensures the app remains a reliable tool for professional evidence collection.
<!-- speakable-end -->

**Best for:** Safety officers, acoustic engineers, and individuals requiring documented evidence for noise complaints.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [MAINTAIN] Audit background-mode microphone permissions because OS privacy changes threaten core logging functionality → maintain uptime
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Stable

The professional acoustic tool market is consolidating around apps that offer reliable, long-term evidence documentation. Decibel Meter Sound Level dB is currently stable, but the lack of recent updates leaves it vulnerable to OS-level API changes that could break background logging.

- ⚪ The 91-day update gap indicates a maintenance-mode posture, which limits the app's ability to respond to new iOS microphone privacy requirements.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Overall Rating | 4.42/5 |
| Total Reviews | 24 |
| Confidence | Low |
| Pricing Model | Subscription |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Trend | Stable |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Decibel Meter Sound Level dB** (this app) | 4.42/5 | N/A | 汇杭 钟 |
| [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect |
| [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim |
| [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies |
| [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC |
| [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.5/5 | Mixed | Fuxin Technology |

## Company Profile
- **Developer:** 汇杭 钟
- **Website:** [https://decibelmeter.andyrgb.com](https://decibelmeter.andyrgb.com)

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/decibel-meter-sound-level-db/id1609178369?uo=4)
- **Dev Site:** [Official Website](https://decibelmeter.andyrgb.com)
- **Sources:** Developer website content, App store metadata.

## Related Intel Reports
- [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 Rating
- [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating
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- [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating
- [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating
- [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating
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- [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating
- [*도사폰 (만세력 역학도구)*](https://marlvel.ai/apps/app--656) (Softchaser Company Limited) · 5.0/5 Rating

## Frequently Asked Questions {#faq}

### Is Decibel Meter Sound Level dB accurate enough for OSHA compliance?

The app is marketed as a professional tool for tracking noise exposure dose according to OSHA and NIOSH standards, but users should verify accuracy against calibrated hardware for official compliance documentation.

### Does Decibel Meter Sound Level dB work in the background?

Yes, the app supports background mode, allowing for continuous measurement and logging of environmental noise data even when the app is closed.

### What features are locked behind the subscription?

The free version allows for basic sound level measurement, while the premium subscription provides access to advanced features like professional PDF reporting, spectrum analysis, and long-term history logging.

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** developer website, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 30 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/decibel-meter-sound-level-db)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.