---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Decibel Meter Master"
developer_entity: "燕辉 冯"
bundle_id: "com.carlfeng.DecibelMeter"
app_store_id: "1281344281"
category: "Utilities"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2018-03-22"
report_date: "2026-08-11"
last_verified: "2026-08-11T00:00:00.000Z"
report_version: "1.1"
total_reviews: 3167
overall_rating: 4.6
sentiment: "Frustrated"
sentiment_score: 35
confidence: "medium"
confidence_score: 0.4
top_praise_theme: "Users value the free access to decibel readings without the recurring subscription fees found elsewhere"
top_complaint_theme: "Users report significant inaccuracy in decibel readings compared to professional sound level meters"
review_sample_size: 37
total_review_count: 37
analyzed_review_count: 37
data_age_days: 5
momentum_velocity: "zombie"
intelligence_version: 3
tags: ["utilities", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "iphone", "users", "requiring"]
canonical_url: "https://marlvel.ai/apps/decibel-meter-master"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# Decibel Meter Master Intelligence Report

## TL;DR {#tldr}

- **Category**: Utilities · Free
- **Signal**: Rating 4.61 · Sentiment Frustrated
- **Recent focus**: Users report significant inaccuracy in decibel readings compared to professional sound level meters (top complaint) · Users value the free access to decibel readings without the recurring subscription fees found elsewhere (top praise)

> **TL;DR:** Decibel Meter Master is a utilities app by 燕辉 冯, rated 4.61/5 by 3.2K users, with Frustrated user sentiment (35/100), available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Decibel Meter Master faces Frustrated user sentiment (4.61/5 from 3.2K reviews), with users reporting users report significant inaccuracy in decibel readings compared to professional sound level meters as the primary concern.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 4.61/5 (3.2K reviews) |
| **User Mood** | Frustrated |
| **Category** | Utilities |
| **Developer** | 燕辉 冯 |
| **Pricing** | Free |
| **Platforms** | iOS |
| **Confidence** | Medium (0.4/1.0) |
| **Data Age** | 5d |

## Metadata & Market Performance
- **Publisher:** 燕辉 冯
- **Category:** Utilities
- **Target Audience:** iPhone users requiring a basic tool to measure ambient noise levels.
- **Platforms:** iOS
- **Version Reviewed:** 1.1
- **Report Date:** 2026-08-11
- **Signal Count:** 37 reviews analyzed
- **Confidence:** Medium (0.4/1.0)
- **App Store ID (iOS):** 1281344281
- **Bundle ID:** com.carlfeng.DecibelMeter
- **Performance Trend:** Declining
- **Data Window:** Analysis based on signals collected up to 2026-08-11

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** Decibel Meter Master is a free utility app for iPhone that uses the device microphone to measure ambient noise levels.
**Why users hire it:** Users hire this tool for informal, low-stakes noise monitoring without the recurring subscription fees found in professional-grade alternatives.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] Sound Level Measurement:** Uses the iPhone microphone to detect and display current noise levels in decibels.
<!-- /section:features -->

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

The app maintains a 4.6-star rating across 3,167 ratings, yet the lack of updates since 2018 signals a stagnant position in the Utilities category.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Free
- **Analysis:** The app is offered as a free utility with no visible subscription or in-app purchase tiers.

<!-- section:sentiment -->
## 🔴 User Sentiment (Medium Confidence: 37 of 37 reviews analyzed) {#user-sentiment}
- **Overall Rating:** 4.61/5
- **Platform Split:** iOS 4.6/5 (3.2K ratings)
- **Overall Sentiment:** Frustrated
- **Note:** The 4.61/5 store rating reflects cumulative history, while the Frustrated sentiment reflects recent user reviews analyzed by our AI pipeline.

### Top Praises
- **Users value the free access to decibel readings without the recurring subscription fees found elsewhere**
- **The application provides actionable data for users monitoring voice projection or household noise levels**

### Top Complaints (Impact Areas)

- **Users report significant inaccuracy in decibel readings compared to professional sound level meters**

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

**Core Strengths:**
- Free access model sustains high user rating baseline

**Growth Levers:**
- Rebranding as hobbyist-grade tool could reset user expectations


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

The app's competitive outlook has shifted to declining due to prolonged inactivity, with a pivot in SWOT analysis toward potential rebranding rather than functional updates.

**Overall trend**: Declining
**Compared at**: 2026-08-11

### High-impact changes
- **[Shifted] Outlook Trend** (positioning)

### Medium-impact changes
- **[Shifted] Opportunity Pivot** (swot)

### Low-impact changes
- **[Added] Rating Volume Context** (positioning)

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

- **Latest (v1.1, 8 years ago):** General bug fixes and performance improvements.
<!-- /section:whats-new -->

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

- No updates for over eight years.

> **Cadence:** 1 total versions · 0 majors in last 6 months · 3063 days since last update

<!-- /section:momentum -->

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

Decibel Meter Master is an utilities app that is completely free.
With a 4.61/5 rating from 3.2K reviews, it draws more critical themes in recent reviews than its store average suggests.

<!-- speakable-start -->
> **Bottom Line:** Decibel Meter Master retains a high rating through its free access model, but the lack of development since 2018 and reported reading inaccuracies make it a high-churn risk, so the developer should sunset the project.
<!-- speakable-end -->

**Best for:** iPhone users requiring a basic tool to measure ambient noise levels.

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

- [ ] [SUNSET] Sunset the application because it has not received an update in over eight years → reduce brand drag
<!-- /section:pm-actions -->

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

The utility market is consolidating around apps that offer calibrated, high-fidelity readings, leaving Decibel Meter Master exposed as a legacy tool. Without a maintenance release to address the reported interface errors and accuracy concerns, the app will continue to lose relevance to modern, updated competitors.

- 🔴 The lack of updates for over eight years prevents the app from addressing user complaints regarding reading accuracy and interface quality.
<!-- /section:outlook -->

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

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

| Metric | Value |
| :--- | :--- |
| Overall Rating | 4.61/5 |
| Total Reviews | 3.2K |
| Sentiment | Frustrated (35/100) |
| Confidence | Medium |
| Pricing Model | Free |
| Platforms | iOS |
| Key Features | 1 analyzed |
| Trend | Declining |
| Outlook | Declining |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Decibel Meter Master** (this app) | 4.61/5 | Frustrated | 燕辉 冯 |
| [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) | 4.4/5 | Mixed | Fuxin Technology |
| [Potatso](https://marlvel.ai/apps/potatso) | 4.4/5 | n/a | Potatso Lab LTD |
| [Quantumult X](https://marlvel.ai/apps/quantumult-x) | 3.8/5 | N/A | Cross Utility Ltd |

## Company Profile
- **Developer:** 燕辉 冯

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/decibel-meter-master/id1281344281?uo=4)
- **Sources:** App store metadata, User reviews.

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## 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:** 0.4/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 37
- **Data Sources:** user reviews, 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:** 5 days since last refresh

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