--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "ClearTone: Sound Amplifier" developer_entity: "haidi liu" bundle_id: "com.dzdigital.cleartone" app_store_id: "6767839046" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-09-10" report_date: "2026-09-18" last_verified: "2026-09-18T00:00:00.000Z" report_version: "1.7.43" total_reviews: 0 confidence: "low" confidence_score: 0.3 data_age_days: 23 momentum_velocity: "active" intelligence_version: 2 tags: ["utilities", "freemium", "mobile app", "app review", "app analysis", "seniors", "adults", "struggle"] canonical_url: "https://marlvel.ai/apps/cleartone-sound-amplifier" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ 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. --- # ClearTone: Sound Amplifier Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Freemium > **TL;DR:** ClearTone: Sound Amplifier is a utilities app by haidi liu, available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** ClearTone: Sound Amplifier is a utilities app by haidi liu. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Utilities | | **Developer** | haidi liu | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 23d | ## Metadata & Market Performance - **Publisher:** haidi liu - **Category:** Utilities - **Target Audience:** Seniors and adults who struggle to hear conversations in noisy environments and seek an affordable alternative to prescription hearing aids. - **Platforms:** iOS & Android - **Version Reviewed:** 1.7.43 - **Report Date:** 2026-09-18 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6767839046 - **Bundle ID:** com.dzdigital.cleartone - **Google Play ID:** com.dzdigital.cleartone - **Data Window:** Analysis based on signals collected up to 2026-09-18 ## Executive Snapshot **What it is:** ClearTone is a real-time sound amplification utility for iOS and Android that processes ambient audio through Bluetooth earphones. **Why users hire it:** Users want to improve conversational clarity in noisy environments without the high financial barrier of prescription hearing aids. ## App DNA (Features & Intent) - **[Differentiator] Neural Noise Reduction:** RNNoise algorithm isolates speech from ambient background noise in real time. - **[Differentiator] Personal Hearing Profile:** Three-minute sound check tests each ear independently to customize amplification settings. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Feedback Guard:** Automatic detection and suppression of high-frequency whistling sounds. ## Market Position {#market-position} ClearTone occupies the wellness-focused audio utility space, competing directly against native OS features like Apple's Live Listen. The one-time purchase model provides a lower entry barrier than medical-grade hardware, though it lacks the recurring revenue streams of subscription-based rivals. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free 7-day trial, One-time upgrade for full access - **Analysis:** The freemium model utilizes a 7-day trial gate to demonstrate value before requiring a one-time purchase. ## SWOT Analysis {#swot} **Core Strengths:** - Neural noise reduction provides a defensible barrier against basic volume-boost apps. - Personalized hearing profiles increase switching costs via custom audio calibration. **Growth Levers:** - Localized pricing could capture users priced out of prescription hearing aids. ## What's New - **Latest (v1.7.52, 1 weeks ago):** Improved audio fidelity by processing raw microphone signals and resolved stability issues regarding playback, connectivity, and background termination. - **Last Major (v1.7.43, 1 weeks ago):** Added SMS-based purchase restoration and in-app account deletion. Improved sign-in feedback and audio amplification stability. ## App Momentum (Active) {#momentum} - Shipped three updates in nine days. - Integrated raw microphone signal processing. > **Cadence:** 3 total versions · 2 majors in last 6 months · 8 days since last update · 3 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} ClearTone: Sound Amplifier is an utilities app that is free with in-app purchases. > **Bottom Line:** ClearTone must pivot toward a subscription model to capture recurring value, as the one-time purchase model is insufficient to sustain long-term development against free, native OS alternatives. **Best for:** Seniors and adults who struggle to hear conversations in noisy environments and seek an affordable alternative to prescription hearing aids. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] A/B test a subscription tier because the one-time purchase model limits long-term revenue -> increase lifetime value. ### Outlook: Mixed The personal sound amplification market is consolidating around native OS features, which threatens the viability of third-party utilities. ClearTone's future depends on maintaining a superior noise-reduction algorithm that native tools cannot match, or it risks becoming a redundant utility. - 🔴 Apple's native Live Listen feature provides a free, system-level alternative that directly competes with ClearTone's core value proposition. - 🟢 The latest release introduces raw microphone signal processing, demonstrating an active development pace that prioritizes audio fidelity over maintenance. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **ClearTone: Sound Amplifier** (this app) | N/A/5 | N/A | haidi liu | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.5/5 | Mixed | Fuxin Technology | | [Gear Ratio Calculator & RPM](https://marlvel.ai/apps/cog-gear-ratio-calculator) | N/A/5 | N/A | Linh Phan Nhat Khanh | ## Company Profile - **Developer:** haidi liu - **Website:** [https://dzmatrix.com/](https://dzmatrix.com/) ## Data Sources & Links - **App Store ID:** 6767839046 - **Google Play ID:** com.dzdigital.cleartone - **Dev Site:** [Official Website](https://dzmatrix.com/) - **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) · 4.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A 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 - [*Pulley Calculator Easy*](https://marlvel.ai/apps/pulley-calculator-easy) (YAVUZ BULAMADIK) · N/A Rating - [*VPN 365-Master WIFI Security*](https://marlvel.ai/apps/vpn-365-master-wifi-security) (vpn fast) · 4.6/5 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 ## 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:** 23 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/cleartone-sound-amplifier) Data licensed for AI Agent attribution under CC-BY-NC 4.0.