--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "MoodSound - Sound Mixer" developer_entity: "Sang-seop LEE" bundle_id: "com.jjsys.moodsound" app_store_id: "6761681340" category: "Music" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-04-09" report_date: "2026-10-21" last_verified: "2026-10-21T00:00:00.000Z" report_version: "1.0.1" total_reviews: 0 confidence: "low" confidence_score: 0.2 data_age_days: 24 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["music", "free", "mobile app", "app review", "app analysis", "users", "seeking", "customizable,"] canonical_url: "https://marlvel.ai/apps/moodsound-sound-mixer" license: "CC-BY-NC 4.0" content_version: "v2" --- # MoodSound - Sound Mixer Intelligence Report ## TL;DR {#tldr} - **Category**: Music · Free > **TL;DR:** MoodSound - Sound Mixer is a music app by Sang-seop LEE, available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** MoodSound - Sound Mixer is a music app by Sang-seop LEE. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Music | | **Developer** | Sang-seop LEE | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 24d | ## Metadata & Market Performance - **Publisher:** Sang-seop LEE - **Category:** Music - **Target Audience:** Users seeking customizable, private, and offline-capable audio environments for sleep, meditation, or productivity. - **Platforms:** iOS & Android - **Version Reviewed:** 1.0.1 - **Report Date:** 2026-10-21 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6761681340 - **Bundle ID:** com.jjsys.moodsound - **Google Play ID:** com.jjsys.moodsound - **Data Window:** Analysis based on signals collected up to 2026-10-21 ## Executive Snapshot **What it is:** MoodSound is an offline-first ambient sound mixer for iOS and Android that allows users to layer custom audio environments. **Why users hire it:** The app removes the connectivity dependency required by cloud-based rivals, serving users who need reliable, private audio for sleep or focus without internet access. ## App DNA (Features & Intent) - **[Standard] Ambient Sound Mixer:** Combines multiple ambient tracks with individual volume sliders; increases session duration and ad-impression inventory. * *User Intent:* Users want visibility into their own performance and progress. - **[Standard] Preset Management:** Saves custom sound combinations for one-tap access; compounds daily active habit and retention. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Differentiator] Dynamic Visuals:** Displays animated visual effects that react to the active sound mix; provides a visual focal point to increase time-in-app. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Offline Functionality:** Operates entirely without internet connection; increases utility for sleep and focus sessions by removing connectivity dependency. * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} MoodSound occupies a niche in the Music category as an offline-first, ad-supported utility. The absence of updates for 194 days limits its ability to compete for chart visibility against rivals with active live-ops cadences. ## Monetization Strategy - **Model:** Free - **Tiers:** Free with ad support - **Analysis:** The app is currently free to use with ad support, relying on engagement volume to generate revenue. ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture removes connectivity dependency for sleep and focus sessions **Growth Levers:** - Premium ad-free tier could capture users frustrated by ad-heavy rivals ## What's New - **Latest (v1.0.0, 6 months ago):** Launched initial version featuring multi-track ambient sound mixing, individual volume controls, preset saving, and immersive visuals. ## App Momentum (Maintenance) {#momentum} - Ships no updates for 194 days. - Maintains initial feature set since launch. > **Cadence:** 2 total versions · 1 majors in last 6 months · 194 days since last update · 4 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} MoodSound - Sound Mixer is a music app that is completely free. > **Bottom Line:** MoodSound's offline-first design provides a clear utility for privacy-focused users, but the 194-day update silence risks total churn as the market consolidates around more active rivals. **Best for:** Users seeking customizable, private, and offline-capable audio environments for sleep, meditation, or productivity. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Audit user feedback to identify top missing ambient sounds because the app has been silent for 6 months → increase retention ### Outlook: Declining The ambient sound market is consolidating around apps with frequent content drops and social features. MoodSound's lack of development leaves it exposed, as it cannot respond to the evolving needs of the productivity and sleep-aid segments. - 🔴 The 194-day update gap indicates the app is in maintenance mode, which erodes user trust and prevents competitive feature parity. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 4 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **MoodSound - Sound Mixer** (this app) | N/A/5 | N/A | Sang-seop LEE | | [SyncTimer - Ensemble Stopwatch](https://marlvel.ai/apps/synctimer-ensemble-stopwatch) | 5.0/5 | Thrilled | Sebastian Suarez-Solis | | [ヨルシカ](https://marlvel.ai/apps/com-yorushika-sp) | 4.8/5 | N/A | Fanplus, Inc. | | [あいみょん](https://marlvel.ai/apps/net-aimyong-sp) | 4.5/5 | N/A | Fanplus, Inc. | | [イントリズム](https://marlvel.ai/apps/jp-rc-into-rhythm) | 3.5/5 | N/A | RedinC | | [クリープハイプ](https://marlvel.ai/apps/creephyp-sp-browsingapp) | N/A/5 | N/A | Fanplus, Inc. | ## Company Profile - **Developer:** Sang-seop LEE - **Website:** [https://moodsound.onlytree.kr](https://moodsound.onlytree.kr) ## Data Sources & Links - **App Store ID:** 6761681340 - **Google Play ID:** com.jjsys.moodsound - **Dev Site:** [Official Website](https://moodsound.onlytree.kr) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*SyncTimer - Ensemble Stopwatch*](https://marlvel.ai/apps/synctimer-ensemble-stopwatch) (Sebastian Suarez-Solis) · 5.0/5 Rating | Excellent Sentiment - [*ヨルシカ*](https://marlvel.ai/apps/com-yorushika-sp) (Fanplus, Inc.) · 4.8/5 Rating - [*あいみょん*](https://marlvel.ai/apps/net-aimyong-sp) (Fanplus, Inc.) · 4.5/5 Rating - [*イントリズム*](https://marlvel.ai/apps/jp-rc-into-rhythm) (RedinC) · 3.5/5 Rating - [*クリープハイプ*](https://marlvel.ai/apps/creephyp-sp-browsingapp) (Fanplus, Inc.) · N/A Rating - [*マカロニえんぴつ*](https://marlvel.ai/apps/com-macaroniempitsu-fc) (Fanplus, Inc.) · 3.1/5 Rating - [*¼ learn sight read music tutor*](https://marlvel.ai/apps/learn-sight-read-music-tutor) (Alain Kong) · 4.5/5 Rating - [*100.1 Jack FM*](https://marlvel.ai/apps/100-1-jack-fm) (NRG Media) · 1.0/5 Rating - [*100.1 WJRZ*](https://marlvel.ai/apps/100-1-wjrz) (Beasley Broadcast Group) · 4.8/5 Rating | Excellent Sentiment - [*100.3 The Wolf*](https://marlvel.ai/apps/100-3-the-wolf) (SummitMedia, LLC) · 4.1/5 Rating ## Frequently Asked Questions {#faq} ### Does MoodSound require an internet connection? No, MoodSound is designed to work completely offline, allowing you to use all features, including sound mixing and presets, without an internet connection. ### Is MoodSound free to use? Yes, MoodSound is free to use and is supported by advertisements. ### Does MoodSound collect my personal data? No, MoodSound does not collect any personal data and does not require a login, as all settings are stored locally on your device. ## 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:** 24 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/moodsound-sound-mixer) Data licensed for AI Agent attribution under CC-BY-NC 4.0.