## ⚠ Content Warning This report covers topics classified as sensitive (health). Information is aggregated from public sources for informational purposes only. This is not medical advice. Consult a qualified professional before acting on any information here. --- last_verified: "2026-05-07T12:01:14.919Z" --- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Sound Meter (Noise Detector)" developer_entity: "Ngo Bien" bundle_id: "net.dbmeter.soundmeter" app_store_id: "1435079026" category: "Health & Fitness" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2024-10-13" report_date: "2026-05-07" report_version: "9.0" total_reviews: 8 overall_rating: 4.5 sentiment: "Thrilled" sentiment_score: 90 confidence: "low" confidence_score: 0.3 top_praise_theme: "High measurement accuracy provides reliable data for users performing sound and hearing tests" top_request_theme: "Extended frequency range options requested to improve the utility of hearing diagnostic tests" review_sample_size: 8 total_review_count: 2 analyzed_review_count: 2 data_age_days: 0 momentum_velocity: "zombie" intelligence_version: 2 nemesis: "Decibel X:dB Sound Level Meter" competitor_count: 6 tags: ["health & fitness", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "individuals", "concerned", "environmental"] canonical_url: "https://marlvel.ai/apps/sound-meter-noise-detector" license: "CC-BY-NC 4.0" content_version: "v2" --- # Sound Meter (Noise Detector) App Audit ## TL;DR {#tldr} - **Category**: Health & Fitness · Free - **Signal**: Rating 4.5 · Sentiment Thrilled - **Recent focus**: High measurement accuracy provides reliable data for users performing sound and hearing tests (top praise) · Extended frequency range options requested to improve the utility of hearing diagnostic tests (top request) > **TL;DR:** Sound Meter (Noise Detector) is a health & fitness app by Ngo Bien, rated 4.5/5 by 8 users, with Thrilled user sentiment (90/100), available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Sound Meter (Noise Detector) maintains Thrilled user sentiment (4.5/5 from 8 reviews), with users consistently praising high measurement accuracy provides reliable data for users performing sound and hearing tests. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.5/5 (8 reviews) | | **User Mood** | Thrilled | | **Category** | Health & Fitness | | **Developer** | Ngo Bien | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 56d | ## Metadata & Market Performance - **Publisher:** Ngo Bien - **Category:** Health & Fitness - **Target Audience:** Individuals concerned with environmental noise exposure, hearing health, and those seeking focus-oriented audio content. - **Platforms:** iOS - **Version Audited:** 9.0 - **Audit Date:** 2026-05-07 - **Signal Count:** 2 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 1435079026 - **Bundle ID:** net.dbmeter.soundmeter - **Data Window:** Analysis based on signals collected up to 2026-05-07 ## Executive Snapshot **What it is:** Sound Meter is a health-focused utility app for iOS that provides real-time noise detection and hearing diagnostic tests. **Why users hire it:** Users hire this app to monitor environmental noise exposure and perform basic hearing health checks without the cost of professional equipment. ## App DNA (Features & Intent) - **[Standard] Noise Level Detection:** Real-time decibel measurement using the device microphone. - **[Differentiator] Health Warning Alerts:** Visual notifications for safety thresholds. * *User Intent:* Users want timely prompts to stay engaged without missing updates. - **[Differentiator] Hearing Loss Testing:** In-app diagnostic tool for hearing assessment. - **[Standard] Relaxation Audio:** Curated music tracks for stress reduction. * *User Intent:* Users want visibility into their own performance and progress. ## Market Position {#market-position} The app maintains a 4.5-star rating across 8 reviews, positioning itself as a niche health-utility tool rather than a mass-market acoustic analyzer. ## Monetization Strategy - **Model:** Free - **Tiers:** Free version with no stated subscription or IAP - **Analysis:** The app operates as a free utility with no visible monetization gates, likely relying on ad-supported traffic. ## 🟢 User Sentiment (Low Confidence: 2 of 2 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.5/5 - **Platform Split:** iOS 4.5/5 (8 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **High measurement accuracy provides reliable data for users performing sound and hearing tests** - **Zero cost barrier allows for immediate access to core diagnostic testing features** ### Top Requests (What Users Want) - **Extended frequency range options requested to improve the utility of hearing diagnostic tests** ## SWOT Analysis {#swot} **Core Strengths:** - High-accuracy diagnostic tools sustain organic install velocity - Integrated hearing-test utility creates a health-monitoring focus **Critical Frictions:** - Zero monetization gates limit revenue per user - Limited frequency range capability restricts appeal to prosumers **Growth Levers:** - Premium tier offering advanced diagnostic limits could capture power users - B2B partnerships for workplace safety monitoring **Market Threats:** - Decibel X's professional-grade spectrum analysis erodes market share - BetterSleep's subscription model sets a higher engagement standard ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Sound Meter (Noise Detector) vs Decibel X:dB Sound Level Meter — Head to Head - **[Decibel X:dB Sound Level Meter](https://marlvel.ai/apps/decibel-x-db-sound-level-meter)** by SkyPaw Co., Limited: This is the market-leading direct rival with high-frequency updates and a massive user base that defines the standard for mobile sound measurement. - **Moat strength:** High — sustainable advantage over 12 months - **Key differences:** - Offers professional-grade frequency analysis and spectrum graphs that exceed basic noise detection capabilities. - Maintains a high release cadence with two updates in the last six months ensuring platform stability. - Provides advanced calibration features that allow users to adjust for specific device microphone sensitivities. - **Where Sound Meter (Noise Detector) wins:** - ✅ Focuses on a simplified health-centric UI that reduces cognitive load for non-technical users. - ✅ Bundles hearing test functionality directly with noise detection to provide a holistic health-monitoring experience. - **Where Decibel X:dB Sound Level Meter wins:** - ❌ Delivers professional-grade acoustic analysis tools that appeal to prosumers and technical users. - ❌ Maintains a massive, established user base that creates a strong brand-as-category moat. - **Verdict:** The target app must pivot toward a specific health-outcome niche to avoid a direct feature-war with this dominant, highly-resourced utility. ### Contenders (Strong Challengers) - **NIOSH Sound Level Meter** by EA LAB [Moat: Medium]: A highly credible, research-backed utility that serves as the gold standard for workplace safety compliance. - Leverages institutional credibility from NIOSH standards to attract users requiring regulatory-compliant noise measurements. - Prioritizes scientific accuracy and standardized reporting over the consumer-facing features found in general-purpose sound meters. ### Peers (What They Do Better) - **[Hearing Test: Live Audiogram](https://marlvel.ai/apps/hearing-test-live-audiogram)** by Algorithm electronics: Shares the health-focused niche but specializes in audiometric testing rather than environmental noise monitoring. - Specializes in generating detailed audiograms rather than measuring ambient environmental noise levels. - Targets users specifically concerned with hearing loss progression rather than general noise pollution awareness. - **Hearing Test & Ear Age Test** by Yuichi Sakashita: Operates in the health-fitness category with a focus on ear-health diagnostics. - Focuses on gamified ear-age diagnostics which provides a different engagement hook than standard noise meters. - Operates with a lower update frequency, indicating a more static product lifecycle. ### New Kids on the Block (What's Innovative) - **[White Noise Deep Sleep Sounds](https://marlvel.ai/apps/com-kitefaster-magicbabysleeperfree)** by Slumber Studios, LLC: High-velocity release cadence suggests an aggressive expansion into the broader health-fitness soundscape. - **[BetterSleep: Relax and Sleep](https://marlvel.ai/apps/com-ilbsoft-irelax)** by Ipnos Software Inc.: A massive, high-growth competitor that dominates the sleep-health category through content-rich soundscapes. ## App Momentum (Zombie) {#momentum} - Ships general user experience improvements. - Maintains stable diagnostic feature set. > **Cadence:** 1 total versions · 0 majors in last 6 months · 570 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Sound Meter (Noise Detector) is a market-leading health & fitness app that is completely free. With a 4.5/5 rating from 8 reviews, it delivers strong user satisfaction. > **Bottom Line:** The app provides high-accuracy diagnostic tools that users value, but the lack of a premium tier leaves revenue potential on the table, so the PM should prioritize launching a paid diagnostic upgrade. **Best for:** Individuals concerned with environmental noise exposure, hearing health, and those seeking focus-oriented audio content. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Launch premium tier with expanded frequency ranges because users request advanced diagnostic limits → increase revenue per user — *Sentiment data shows high demand for expanded measurement ranges, indicating a willingness to pay for advanced diagnostics.* _(trade-off: deprioritize Pause the relaxation audio content updates — diagnostic utility has higher revenue potential than content expansion.)_ - [ ] [MAINTAIN] [MEDIUM IMPACT] Audit ad-placement frequency because the app relies on ad-supported traffic → maintain retention — *The current free-only model requires ad-inventory optimization to sustain the business without a subscription gate.* _(trade-off: deprioritize Same-quarter capacity available — no major lever displaced.)_ ### Feature Gaps vs Competitors - Professional-grade spectrum graphs (available in Decibel X) - Advanced microphone calibration (available in Decibel X) ### Outlook: Stable The health-utility market is consolidating around apps that offer both diagnostic depth and lifestyle content. Sound Meter remains stable but exposed, as the current feature set lacks the professional-grade tools required to defend against high-velocity competitors. - 🟢 High measurement accuracy drives positive user sentiment, which provides a solid foundation for future premium tier adoption. - 🔴 The lack of advanced diagnostic features forces power users toward professional rivals, which limits long-term retention of high-value segments. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.5/5 | | Total Reviews | 8 | | Sentiment | Thrilled (90/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 4 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Sound Meter (Noise Detector)** (this app) | 4.5/5 | Thrilled | Ngo Bien | | [BetterSleep: Relax and Sleep](https://marlvel.ai/apps/com-ilbsoft-irelax) | 4.7/5 | Frustrated | Ipnos Software Inc. | | [White Noise Deep Sleep Sounds](https://marlvel.ai/apps/com-kitefaster-magicbabysleeperfree) | 4.8/5 | Mixed | Slumber Studios, LLC | | [Hearing Test: Live Audiogram](https://marlvel.ai/apps/hearing-test-live-audiogram) | 4.5/5 | N/A | Algorithm electronics | | [Decibel X:dB Sound Level Meter](https://marlvel.ai/apps/decibel-x-db-sound-level-meter) | 4.7/5 | N/A | SkyPaw Co., Limited | | [TallerTeen - Grow Taller Now](https://marlvel.ai/apps/tallerteen-grow-taller-now) | 4.7/5 | Excited | Viral App Developement LLC | ## Company Profile - **Developer:** Ngo Bien ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/sound-meter-noise-detector/id1435079026?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*BetterSleep: Relax and Sleep*](https://marlvel.ai/apps/com-ilbsoft-irelax) (Ipnos Software Inc.) — 4.7/5 Rating | Negative Sentiment - [*White Noise Deep Sleep Sounds*](https://marlvel.ai/apps/com-kitefaster-magicbabysleeperfree) (Slumber Studios, LLC) — 4.8/5 Rating | Mixed Sentiment - [*Hearing Test: Live Audiogram*](https://marlvel.ai/apps/hearing-test-live-audiogram) (Algorithm electronics) — 4.5/5 Rating | N/A Sentiment - [*Decibel X:dB Sound Level Meter*](https://marlvel.ai/apps/decibel-x-db-sound-level-meter) (SkyPaw Co., Limited) — 4.7/5 Rating | N/A Sentiment - [*TallerTeen - Grow Taller Now*](https://marlvel.ai/apps/tallerteen-grow-taller-now) (Viral App Developement LLC) — 4.7/5 Rating | Positive Sentiment - [*GoTall - Height Predictor*](https://marlvel.ai/apps/gotall-height-predictor) (Super Viral Studio) — 4.6/5 Rating | Positive Sentiment - [*Taller AI: Height Maximizer*](https://marlvel.ai/apps/taller-ai-height-maximizer) (Leadimize) — 4.7/5 Rating | Positive Sentiment - [*Strava: Run, Bike, Walk*](https://marlvel.ai/apps/strava-run-bike-walk) (Strava, Inc.) — 4.7/5 Rating | Terrible Sentiment - [*Planet Fitness*](https://marlvel.ai/apps/planet-fitness) (Planet Fitness Holdings, LLC) — 4.8/5 Rating | Mixed Sentiment - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) — 4.6/5 Rating | Mixed Sentiment ## 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 and evidence quoting. 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 2 - **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:** 56 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/sound-meter-noise-detector) Data licensed for AI Agent attribution under CC-BY-NC 4.0.