--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "N-Signal / FFT Sound Analyzer" developer_entity: "kyu il jung" bundle_id: "com.jcmeek.nsignal" app_store_id: "6755102833" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-01-08" report_date: "2026-08-11" last_verified: "2026-08-11T00:00:00.000Z" report_version: "1.1.0" total_reviews: 2 overall_rating: 5 sentiment: "Thrilled" sentiment_score: 90 confidence: "medium" confidence_score: 0.55 top_praise_theme: "Real-time frequency and amplitude visualization provides high utility for environmental and musical analysis tasks" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 5 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["utilities", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "musicians,", "audio", "engineers,"] canonical_url: "https://marlvel.ai/apps/n-signal-fft-sound-analyzer" license: "CC-BY-NC 4.0" content_version: "v2" --- # N-Signal / FFT Sound Analyzer Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 5 · Sentiment Thrilled - **Recent focus**: Real-time frequency and amplitude visualization provides high utility for environmental and musical analysis tasks (top praise) > **TL;DR:** N-Signal / FFT Sound Analyzer is a utilities app by kyu il jung, rated 5/5 by 2 users, with Thrilled user sentiment (90/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** N-Signal / FFT Sound Analyzer maintains Thrilled user sentiment (5/5 from 2 reviews), with users consistently praising real-time frequency and amplitude visualization provides high utility for environmental and musical analysis tasks. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (2 reviews) | | **User Mood** | Thrilled | | **Category** | Utilities | | **Developer** | kyu il jung | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.55/1.0) | | **Data Age** | 5d | ## Metadata & Market Performance - **Publisher:** kyu il jung - **Category:** Utilities - **Target Audience:** Musicians, audio engineers, and sound enthusiasts requiring a reference tool for daily sound checks and acoustic analysis. - **Platforms:** iOS & Android - **Version Reviewed:** 1.1.0 - **Report Date:** 2026-08-11 - **Signal Count:** 1 review analyzed - **Confidence:** Medium (0.55/1.0) - **App Store ID (iOS):** 6755102833 - **Bundle ID:** com.jcmeek.nsignal - **Google Play ID:** com.jcmeek.nsignal - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-08-11 ## Executive Snapshot **What it is:** N-Signal is an audio analysis utility for iOS and Android that visualizes sound pressure and frequency levels in real time. **Why users hire it:** Users hire N-Signal to perform quick, reliable acoustic checks in professional and educational environments without the cost of laboratory-grade equipment. ## App DNA (Features & Intent) - **[Standard] Real-time FFT Analysis:** Visualizes audio spectrum data using Fast Fourier Transform processing for live sound monitoring. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Peak Frequency Marker:** Displays a live marker on the spectrum graph to identify dominant frequencies. - **[Differentiator] Low-Frequency Accuracy:** Enhanced FFT processing measuring down to 20Hz, serving as a proof-of-concept for B2B signal engine technology. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} N-Signal occupies a niche utility position, maintaining a 5.0-star rating on the App Store. The lack of recent updates compared to the broader utility category signals a focus on B2B technology demonstration rather than consumer-facing market share growth. ## Monetization Strategy - **Model:** Free - **Tiers:** Free to use - **Analysis:** The app is offered for free as a service layer to demonstrate the developer's core signal engine technology for potential B2B clients. ## 🟢 User Sentiment (Medium Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Rating:** 5/5 - **Platform Split:** iOS 5.0/5 (2 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **Real-time frequency and amplitude visualization provides high utility for environmental and musical analysis tasks** ## SWOT Analysis {#swot} **Core Strengths:** - FFT processing down to 20Hz functions as a B2B distribution barrier for signal engine technology - Real-time frequency visualization provides high utility for environmental analysis tasks **Growth Levers:** - Education partnerships offer an untapped B2B distribution channel for acoustic analysis tools ## Recent Changes (v2 → v3) {#recent-changes} The competitive outlook has shifted to mixed as the prolonged maintenance period highlights risks of obsolescence and weak Android market penetration. **Overall trend**: Mixed **Compared at**: 2026-08-11 ### High-impact changes - **[Shifted] Competitive Stance** (positioning) ### Medium-impact changes - **[Added] Android Distribution Weakness** (swot) - **[Added] Competitive Obsolescence Threat** (swot) ## What's New - **Latest (v1.1.0, 7 months ago):** Added real-time peak frequency display with smart tracking and improved FFT processing for low-frequency accuracy down to 20Hz. ## App Momentum (Maintenance) {#momentum} - Last major release Jan 2026. - Quiet 7 months, maintenance mode. > **Cadence:** 1 total versions · 1 majors in last 6 months · 214 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} N-Signal / FFT Sound Analyzer is an utilities app that is completely free. It holds a 5/5 rating from 2 reviews. > **Bottom Line:** N-Signal provides a precise, free reference tool for acoustic analysis, but its long update silence risks losing the professional user base to more active competitors, so the developer must prioritize a UI refresh to signal continued product support. **Best for:** Musicians, audio engineers, and sound enthusiasts requiring a reference tool for daily sound checks and acoustic analysis. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship UI refresh because the 7-month update gap signals abandonment to power users → increase retention ### Outlook: Mixed The audio analysis category is shifting toward high-frequency feature updates and UI modernization. N-Signal's current maintenance-mode posture leaves it exposed to rivals that offer more consistent support, so the developer must resume a regular update cadence to remain a viable reference tool. - 🔴 The 7-month update silence suggests the app is in maintenance mode, which reduces its competitive standing against more frequently updated audio tools. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 2 | | Sentiment | Thrilled (90/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **N-Signal / FFT Sound Analyzer** (this app) | 5/5 | Thrilled | kyu il jung | | [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:** kyu il jung - **Website:** [https://jcmeek.com](https://jcmeek.com) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/n-signal-fft-sound-analyzer/id6755102833?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.jcmeek.nsignal&hl=en&gl=us) - **Dev Site:** [Official Website](https://jcmeek.com) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## Related Intel Reports - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*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) · 4.4/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.5/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*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 - [*근로자 공수달력*](https://marlvel.ai/apps/jaehwan-worktracer) (jaehwan lee) · N/A Rating ## 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:** 0.55/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **Data Sources:** user reviews, 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:** 5 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/n-signal-fft-sound-analyzer) Data licensed for AI Agent attribution under CC-BY-NC 4.0.