--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Charging Sound" developer_entity: "JIANGYONG LIU21021539842" bundle_id: "com.jongjoy.charging" app_store_id: "1537282329" google_play_id: "charging.sound.effect.plug.sound" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2023-03-14" report_date: "2026-05-22" last_verified: "2026-05-22T21:58:13.247Z" report_version: "1.18" total_reviews: 685 overall_rating: 4.1 sentiment: "Mixed" sentiment_score: 65 confidence: "medium" confidence_score: 0.45 top_praise_theme: "Customization utility" top_complaint_theme: "Subscription paywall" review_sample_size: 49 data_age_days: 40 momentum_velocity: "zombie" intelligence_version: 4 competitor_count: 6 tags: ["lifestyle", "subscription", "mixed sentiment", "mobile app", "app review", "app analysis", "smartphone", "users", "looking"] canonical_url: "https://marlvel.ai/intel-report/lifestyle/charging-sound" license: "CC-BY-NC 4.0" content_version: "v2" --- # Charging Sound App Audit ## TL;DR {#tldr} - **Category**: Lifestyle · Subscription - **Signal**: Rating 4.1 · Sentiment Mixed - **Recent focus**: Subscription paywall (top complaint) · Customization utility (top praise) > **TL;DR:** Charging Sound is a lifestyle app by JIANGYONG LIU21021539842, rated 4.1/5 by 685 users, with Mixed user sentiment (65/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Charging Sound shows Mixed sentiment (4.1/5 from 685 reviews) — users praise customization utility but report issues with subscription paywall. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.1/5 (685 reviews) | | **User Mood** | Mixed | | **Category** | Lifestyle | | **Developer** | JIANGYONG LIU21021539842 | | **Pricing** | Subscription | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.45/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** JIANGYONG LIU21021539842 - **Category:** Lifestyle - **Target Audience:** Smartphone users looking to personalize system notifications and battery alerts with custom audio. - **Platforms:** iOS & Android - **Version Audited:** 1.18 - **Audit Date:** 2026-05-22 - **Signal Count:** 49 reviews analyzed - **Confidence:** Medium (0.45/1.0) - **App Store ID (iOS):** 1537282329 - **Bundle ID:** com.jongjoy.charging - **Google Play ID:** charging.sound.effect.plug.sound - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-05-22 - **Short Description:** Customize Battery charging sound effect. Charging voice effect. ## Executive Snapshot **What it is:** Charging Sound is a personalization utility for iOS and Android that allows users to customize battery charging and connection alerts. **Why users hire it:** Users hire this app to modify system-level notification behaviors, providing auditory feedback that distinguishes their device from default settings. ## App DNA (Features & Intent) - **[Differentiator] Custom Sound Upload:** Users import personal audio files from device storage to replace default system charging alerts. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Multi-Event Triggers:** Assign unique audio files to specific battery states: connection, disconnection, and full charge. - **[Standard] Pre-set Sound Library:** Collection of over 30 pre-loaded sound effects including voice clips and beats. ## Market Position {#market-position} Charging Sound occupies a niche utility space, but its $24.99/year subscription tier is significantly higher than the median for single-function personalization tools. The 1.44-star rating gap between iOS and Android platforms indicates that Android users are experiencing functional regressions that threaten the app's overall market standing. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free tier with ads, Premium tier at $24.99/year or $9.99/3 months - **Analysis:** Subscription model anchored at $24.99/year, gating custom sound uploads and removing ads. ## 🟡 User Sentiment (Medium Confidence: 685 reviews) {#user-sentiment} - **Overall Rating:** 4.1/5 - **Platform Split:** iOS 4.3/5 (579 ratings) | Android 2.9/5 (106 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **Customization utility** ### Top Complaints (Impact Areas) - **Subscription paywall** ## SWOT Analysis {#swot} **Core Strengths:** - Multi-event trigger logic enables granular battery state feedback - Custom audio upload capability provides a unique personalization hook **Critical Frictions:** - Premium tier at $24.99/year above category median - 1.44-star rating gap between Android and iOS **Growth Levers:** - Expansion into wearable-specific sound alerts - B2B partnerships with theme-pack developers **Market Threats:** - System-level control panel apps absorbing niche utility features - Rising user sensitivity to subscription-gating for file-upload functionality ## Recent Changes (v3 → v4) {#recent-changes} The app's competitive focus shifted toward broader personalization aesthetics, accompanied by a sentiment improvement and a re-evaluation of platform-specific technical risks. **Overall trend**: Mixed **Compared at**: 2026-05-22 ### High-impact changes - **[Improved] Sentiment and Rating Recovery** (sentiment) — Overall sentiment shifted from negative to mixed, with the average rating increasing from 3.59 to 4.32. - **[Shifted] Competitive Landscape Pivot** (positioning) — The competitive set moved from sound-utility apps to aesthetic-focused icon packs and control panel tools, reflecting a change in the perceived market segment. ### Medium-impact changes - **[Added] New Strategic SWOT Items** (swot) — Added opportunities for wearable-specific sound alerts and B2B partnerships; identified system-level control panel apps as a new threat. - **[Declined] Platform Stability Risk** (positioning) — The market narrative now explicitly identifies a 1.44-star rating gap between Android and iOS as a core threat to the app's stability. ## What's New - **Latest (v1.10, 5 years ago):** Added new charging sound and fixed a custom audio crash. ## App Momentum (Zombie) {#momentum} - Maintains core sound-trigger feature set. - No significant feature updates recently. > **Cadence:** 5 total versions · 1 majors in last 6 months · 1165 days since last update · 172 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Charging Sound is an established lifestyle app that is available. With a 4.1/5 rating from 685 reviews, it shows polarized user reception. > **Bottom Line:** Charging Sound offers a unique personalization utility, but the $24.99/year subscription gate for custom uploads creates excessive friction, so the PM should pivot to a hybrid monetization model to lower churn and stabilize the Android user base. **Best for:** Smartphone users looking to personalize system notifications and battery alerts with custom audio. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] [HIGH IMPACT] Pivot subscription model to include a one-time purchase option because paywall complaints are the top sentiment driver → reduce churn. — *User sentiment data highlights high-frequency complaints regarding the subscription paywall for custom sound uploads.* _(trade-off: deprioritize Pause the annual-tier price testing — refund surge has higher immediate revenue impact.)_ - [ ] [MAINTAIN] [MEDIUM IMPACT] Audit Android build stability because the 1.44-star rating gap vs iOS indicates platform-specific regressions → stabilize rating baseline. — *Platform metadata shows a 1.44-star rating gap between Android and iOS.* _(trade-off: deprioritize Deprioritize new sound-library content — stability is the current primary churn risk.)_ ### Feature Gaps vs Competitors - System-level control panel integration (available in Control Widget but missing here) - Cloud-based wallpaper gallery (available in Neon-PinkPD but missing here) ### Outlook: Mixed The personalization market is consolidating around apps that offer broader aesthetic utility for a lower cost, leaving single-function sound apps exposed. Charging Sound must address its Android stability and monetization friction to remain relevant against theme-pack competitors. - 🔴 The 1.44-star rating gap on Android indicates platform-specific stability issues that erode the user base and compound long-term churn. - ⚪ Recent updates focused on stability rather than feature expansion, signaling a move toward maintenance mode rather than growth. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.1/5 | | Total Reviews | 685 | | Sentiment | Mixed (65/100) | | Confidence | Medium | | Pricing Model | Subscription | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Charging Sound** (this app) | 4.1/5 | Mixed | JIANGYONG LIU21021539842 | | [Control Widget - Themed Panels](https://marlvel.ai/intel-report/personalization/com-ioscontrol-themed-control-center-smart) | 4.4/5 | Thrilled | iControl Tools | | [Cubic Light - 3D Icon Pack](https://marlvel.ai/intel-report/personalization/cubic-light-3d-icon-pack) | 4.7/5 | N/A | GomoTheGom | | [Circle Ring Icon Pack](https://marlvel.ai/intel-report/personalization/circle-ring-icon-pack) | 4.5/5 | Excited | GomoTheGom | | [Neon-PinkPD Icon Pack](https://marlvel.ai/intel-report/personalization/neon-pinkpd-icon-pack) | 4.4/5 | Excited | PhunktasticDesigns | | [Blox - Icon Pack](https://marlvel.ai/intel-report/personalization/blox-icon-pack) | N/A/5 | N/A | PhunktasticDesigns | ## Company Profile - **Developer:** JIANGYONG LIU21021539842 ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/charging-sound/id1537282329?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=charging.sound.effect.plug.sound&hl=en&gl=us) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Control Widget - Themed Panels*](https://marlvel.ai/intel-report/personalization/com-ioscontrol-themed-control-center-smart) (iControl Tools) — 4.4/5 Rating | Excellent Sentiment - [*Cubic Light - 3D Icon Pack*](https://marlvel.ai/intel-report/personalization/cubic-light-3d-icon-pack) (GomoTheGom) — 4.7/5 Rating | N/A Sentiment - [*Circle Ring Icon Pack*](https://marlvel.ai/intel-report/personalization/circle-ring-icon-pack) (GomoTheGom) — 4.5/5 Rating | Positive Sentiment - [*Neon-PinkPD Icon Pack*](https://marlvel.ai/intel-report/personalization/neon-pinkpd-icon-pack) (PhunktasticDesigns) — 4.4/5 Rating | Positive Sentiment - [*Blox - Icon Pack*](https://marlvel.ai/intel-report/personalization/blox-icon-pack) (PhunktasticDesigns) — N/A Rating | N/A Sentiment - [*OneUI Fluffy Dark Icons*](https://marlvel.ai/intel-report/art-design/com-oneui-fluffy-dark-icons) (AppixoStudio) — 4.1/5 Rating | N/A Sentiment - [*Tinder Dating App: Date & Chat*](https://marlvel.ai/intel-report/lifestyle/tinder-dating-app-date-chat) (Tinder LLC) — 4.2/5 Rating | Terrible Sentiment - [*Alarmy - Loud alarm clock*](https://marlvel.ai/intel-report/lifestyle/alarmy-loud-alarm-clock) (Delight Room Co., Ltd.) — 4.8/5 Rating | Positive Sentiment - [*AlarmMon ( alarm clock )*](https://marlvel.ai/intel-report/lifestyle/alarmmon-alarm-clock) (Malang Studio Co. Ltd,) — 4.2/5 Rating | Negative Sentiment - [*Swiftime*](https://marlvel.ai/intel-report/lifestyle/swiftime) (MEDIANO Co.,Ltd.) — 4.5/5 Rating | Positive 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:** 0.45/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 49 - **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:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/lifestyle/charging-sound) Data licensed for AI Agent attribution under CC-BY-NC 4.0.