--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Decibel Meter - Sound Level" developer_entity: "Brais Castro" bundle_id: "com.braiscastro.DecibelMeter" app_store_id: "6741395557" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-04-02" report_date: "2026-10-11" last_verified: "2026-10-11T00:00:00.000Z" report_version: "1.0.1" total_reviews: 0 confidence: "low" confidence_score: 0.3 data_age_days: 2 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "freemium", "mobile app", "app review", "app analysis", "iphone", "users", "needing"] canonical_url: "https://marlvel.ai/apps/decibel-meter-sound-level-2" license: "CC-BY-NC 4.0" content_version: "v2" --- # Decibel Meter - Sound Level Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Freemium > **TL;DR:** Decibel Meter - Sound Level is a utilities app by Brais Castro, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Decibel Meter - Sound Level is a utilities app by Brais Castro. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Utilities | | **Developer** | Brais Castro | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 2d | ## Metadata & Market Performance - **Publisher:** Brais Castro - **Category:** Utilities - **Target Audience:** iPhone users needing quick, real-time sound level estimates for non-professional or non-regulatory purposes. - **Platforms:** iOS - **Version Reviewed:** 1.0.1 - **Report Date:** 2026-10-11 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6741395557 - **Bundle ID:** com.braiscastro.DecibelMeter - **Data Window:** Analysis based on signals collected up to 2026-10-11 ## Executive Snapshot **What it is:** Decibel Meter is an iOS utility that provides real-time sound level measurements and historical charting on a circular gauge. **Why users hire it:** The app removes the privacy friction associated with sound-metering tools by processing all audio data locally on the device. ## App DNA (Features & Intent) - **[Standard] Real-time Sound Measurement:** Displays dB SPL readings on a circular gauge with 10 updates per second. - **[Standard] Live Charting:** Visualizes sound fluctuations with a 15-second limit for free users, gating longer durations behind Pro. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Microphone Calibration:** Provides an offset adjustment for the device microphone to improve measurement accuracy. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Decibel Meter maintains a niche position in the Utilities category, relying on a privacy-first value proposition to differentiate from ad-supported rivals. The 191-day update gap suggests a lack of aggressive market expansion, limiting its ability to capture share from more actively maintained competitors. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with 15-second chart limit, Pro tier with extended chart durations, full session history, and calibration tools - **Analysis:** The freemium model gates advanced data visualization and calibration tools to monetize power users. ## SWOT Analysis {#swot} **Core Strengths:** - Privacy-first, on-device processing removes data-harvesting friction **Growth Levers:** - Widget-based quick-launch could increase session frequency ## What's New - **Latest (v1.0.1, 6 months ago):** Maintenance update focused on bug fixes. ## App Momentum (Zombie) {#momentum} - Quiet 6 months, maintenance mode only. - Last major release 191 days ago. > **Cadence:** 1 total versions · 0 majors in last 6 months · 191 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Decibel Meter - Sound Level is an utilities app that is free with in-app purchases. > **Bottom Line:** Decibel Meter's privacy-first architecture provides a clear differentiator, but the 191-day development silence threatens its long-term viability. Addressing the lack of active maintenance is necessary to prevent user churn as iOS requirements evolve. **Best for:** iPhone users needing quick, real-time sound level estimates for non-professional or non-regulatory purposes. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship widget-based quick-launch because the current manual-open flow limits session frequency → increase daily active usage ### Outlook: Mixed The sound-metering utility market is consolidating around apps that offer frequent feature updates and hardware-integrated widgets. Decibel Meter's current development silence leaves it vulnerable to rivals that offer similar privacy guarantees alongside modern iOS feature support. - 🔴 The 191-day update gap indicates a maintenance-only posture, which risks technical obsolescence as iOS microphone permissions evolve. - ⚪ Privacy-first processing remains a stable differentiator, though it lacks the feature-velocity required to displace category leaders. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Decibel Meter - Sound Level** (this app) | N/A/5 | N/A | Brais Castro | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [App For Siri Commands Tips](https://marlvel.ai/apps/app-for-siri-commands-tips) | N/A/5 | N/A | Anh La Phan Son | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Bin Days - Bin Reminder](https://marlvel.ai/apps/bin-days-bin-reminder) | N/A/5 | N/A | Vicki Partridge | ## Company Profile - **Developer:** Brais Castro - **Website:** [https://brais-castro-apps.pages.dev](https://brais-castro-apps.pages.dev) ## Data Sources & Links - **App Store ID:** 6741395557 - **Dev Site:** [Official Website](https://brais-castro-apps.pages.dev) - **Sources:** Developer website content, About us / company information, App store metadata. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*App For Siri Commands Tips*](https://marlvel.ai/apps/app-for-siri-commands-tips) (Anh La Phan Son) · N/A Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Bin Days - Bin Reminder*](https://marlvel.ai/apps/bin-days-bin-reminder) (Vicki Partridge) · N/A Rating - [*Controller Tester FGC*](https://marlvel.ai/apps/controller-tester-fgc) (Aaron Lowe) · 5.0/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating - [*Gear Ratio Calculator & RPM*](https://marlvel.ai/apps/cog-gear-ratio-calculator) (Linh Phan Nhat Khanh) · N/A Rating - [*MDflow Web Clipper*](https://marlvel.ai/apps/mdflow-web-clipper) (DataOps, s.r.o.) · N/A Rating - [*NordVPN: VPN Fast & Secure*](https://marlvel.ai/apps/com-nordvpn-nordvpn) (Nordvpn S.A.) · 4.7/5 Rating ## Frequently Asked Questions {#faq} ### Is Decibel Meter safe to use for privacy-conscious users? Yes, Decibel Meter processes all audio data entirely on-device, ensuring nothing is recorded, stored, or transmitted externally. ### Can I use Decibel Meter for professional noise compliance? No, Decibel Meter is not a calibrated measurement instrument and should not be used for regulatory or occupational health compliance. ### What features are included in the Pro version? The Pro version unlocks detailed statistics, extended chart durations up to 5 minutes, full session history, and microphone calibration offsets. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, company about page, 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:** 2 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/decibel-meter-sound-level-2) Data licensed for AI Agent attribution under CC-BY-NC 4.0.