--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Vocal Remover for Karaoke" developer_entity: "Kasidej Khunvattanakarn" bundle_id: "info.hijo.VocalRemoverIOS" app_store_id: "1393212799" category: "Music" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-05-16" report_date: "2026-05-19" last_verified: "2026-05-19T22:50:16.468Z" report_version: "2.0.1" total_reviews: 68 overall_rating: 2.19 sentiment: "Mixed" sentiment_score: 40 confidence: "medium" confidence_score: 0.55 top_praise_theme: "Offline functionality" top_complaint_theme: "Poor vocal isolation quality" review_sample_size: 68 data_age_days: 21 momentum_velocity: "maintenance" intelligence_version: 4 nemesis: "BandLab – Music Maker & Beats" competitor_count: 11 tags: ["music", "freemium", "mixed sentiment", "mobile app", "app review", "app analysis", "karaoke", "enthusiasts,", "musicians,"] canonical_url: "https://marlvel.ai/intel-report/music/vocal-remover-for-karaoke" license: "CC-BY-NC 4.0" content_version: "v2" --- # Vocal Remover for Karaoke App Audit ## TL;DR {#tldr} - **Category**: Music · Freemium - **Signal**: Rating 2.19 · Sentiment Mixed - **Recent focus**: Poor vocal isolation quality (top complaint) · Offline functionality (top praise) > **TL;DR:** Vocal Remover for Karaoke is a music app by Kasidej Khunvattanakarn, rated 2.19/5 by 68 users, with Mixed user sentiment (40/100), available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Vocal Remover for Karaoke shows Mixed sentiment (2.19/5 from 68 reviews) — users praise offline functionality but report issues with poor vocal isolation quality. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 2.19/5 (68 reviews) | | **User Mood** | Mixed | | **Category** | Music | | **Developer** | Kasidej Khunvattanakarn | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Medium (0.55/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Kasidej Khunvattanakarn - **Category:** Music - **Target Audience:** Karaoke enthusiasts, musicians, and content creators who require offline, private audio processing tools. - **Platforms:** iOS - **Version Audited:** 2.0.1 - **Audit Date:** 2026-05-19 - **Signal Count:** 68 reviews analyzed - **Confidence:** Medium (0.55/1.0) - **App Store ID (iOS):** 1393212799 - **Bundle ID:** info.hijo.VocalRemoverIOS - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-05-19 ## Executive Snapshot **What it is:** Vocal Remover for Karaoke is an audio processing app for iOS that uses on-device neural networks to separate vocals from music tracks. **Why users hire it:** Users hire this app to create backing tracks for singing or sampling without uploading private music files to the cloud, serving a privacy-first job-to-be-done. ## App DNA (Features & Intent) - **[Differentiator] On-device Neural Vocal Isolation:** Core ML model separates vocals from music tracks locally without cloud processing * *User Intent:* Users expect seamless access across multiple devices. - **[Differentiator] Karaoke Recording Mode:** Records user vocals over instrumental tracks with playback and re-recording capabilities * *User Intent:* Users want visibility into their own performance and progress. - **[Differentiator] Pitch-Shifting:** Adjusts the musical key of the instrumental track in real time * *User Intent:* Users want visibility into their own performance and progress. ## Market Position {#market-position} The app maintains a niche position in the Music category, but its 2.19-star rating suggests it is failing to retain users against more robust competitors. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with ads, No-Ads Pro version via one-time purchase - **Analysis:** Freemium model uses a one-time purchase to gate ad removal and advanced audio tools like pitch-shifting. ## 🟡 User Sentiment (Medium Confidence: 68 reviews) {#user-sentiment} - **Overall Rating:** 2.19/5 - **Platform Split:** iOS 2.2/5 (68 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **Offline functionality** ### Top Complaints (Impact Areas) - **Poor vocal isolation quality** ## SWOT Analysis {#swot} **Core Strengths:** - On-device processing ensures 100% data privacy - Offline-first architecture removes dependency on internet connectivity **Critical Frictions:** - 2.19-star rating indicates poor isolation fidelity - Lack of frequent model updates limits competitive relevance **Growth Levers:** - Integrate professional-grade FX filters to compete with Hokusai - Expand B2B partnerships for language learning tools **Market Threats:** - BandLab's end-to-end ecosystem drains the user base - ZipoApps' broader post-processing suite captures power users ## Recent Changes (v3 → v4) {#recent-changes} The app's competitive focus has shifted from technical stability to model fidelity, with user sentiment reflecting dissatisfaction with the quality of vocal isolation. **Overall trend**: Mixed **Compared at**: 2026-05-19 ### High-impact changes - **[Shifted] Primary User Complaint** (sentiment) — Top complaint shifted from 'Persistent file-import failures' to 'Poor vocal isolation quality' (artifacts in output). - **[Added] Competitive Threats** (swot) — Added BandLab and ZipoApps as specific threats to the user base, replacing the previous focus on Moises's release cadence. ### Medium-impact changes - **[Improved] Overall Sentiment Rating** (sentiment) — Sentiment classification improved from 'terrible' to 'mixed', despite the rating remaining at 2.19. - **[Added] Model Fidelity Weakness** (swot) — Added 'Lack of frequent model updates' as a core weakness limiting competitive relevance. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Vocal Remover for Karaoke vs BandLab – Music Maker & Beats — Head to Head - **[BandLab – Music Maker & Beats](https://marlvel.ai/intel-report/music/bandlab-music-maker-beats)** by BandLab Singapore Pte Ltd: BandLab dominates the mobile music creation space by offering a comprehensive DAW that includes the same stem separation technology found in our target app. - **Key differences:** - Offers a full-featured multi-track DAW environment that goes far beyond simple vocal removal tools - Leverages massive social network effects and cloud-based collaboration features that lock in active creators - Provides professional-grade AI mastering tools that turn basic vocal removals into finished, polished tracks - **Where Vocal Remover for Karaoke wins:** - ✅ Focuses exclusively on real-time, on-device processing without requiring account creation or cloud uploads - ✅ Maintains strict user privacy by keeping all audio processing local to the device hardware - **Where BandLab – Music Maker & Beats wins:** - ❌ Provides a complete end-to-end ecosystem for recording, editing, and sharing music projects - ❌ Benefits from a massive, established user base and frequent feature updates that drive high retention - **Verdict:** The target app should lean into its 'privacy-first, no-internet' niche to attract users wary of BandLab's cloud-heavy, social-centric ecosystem. ### Contenders (Strong Challengers) - **[Vocal Remover & AI Separator](https://marlvel.ai/intel-report/music/vocal-remover-ai-separator)** by ZipoApps: This is a direct feature-for-feature competitor that specifically targets the karaoke and stem-separation market segment. - Provides a broader set of post-processing audio editing tools for refining separated vocal and instrumental stems - Offers high-quality export options that cater to users looking to produce professional-sounding karaoke tracks - **[Hokusai Audio Editor](https://marlvel.ai/intel-report/music/hokusai-audio-editor)** by Wooji Juice Ltd: Hokusai is a direct competitor in the audio utility space, offering granular editing capabilities that overlap with the target's signal processing focus. - Offers precise, visual multitrack audio editing that allows for surgical control over specific audio segments - Provides a mature suite of professional-grade FX and filters that the target app currently lacks - **[Atom | Piano Roll 2](https://marlvel.ai/intel-report/music/atom-piano-roll-2)** by Victor Porof: This app targets the technical music production market, competing for the attention of users who prioritize advanced MIDI and audio manipulation. - Includes a unique scripting playground that allows power users to automate complex musical sequences - Focuses on MIDI architecture and visibility layers, catering to composers rather than vocal extraction enthusiasts - **[mLFO](https://marlvel.ai/intel-report/music/net-axart-mlfo)** by Axart Labs OU: While focused on modulation, it competes for the same professional music producer audience looking for advanced signal processing tools. - Provides deep AUv3 plugin support, allowing integration into professional mobile DAWs like AUM or Cubasis - Features highly technical, programmable LFOs that appeal to sound designers rather than casual karaoke users ### Peers (What They Do Better) - **[Audiobus Remote](https://marlvel.ai/intel-report/music/audiobus-remote)** by Audiobus Pty Ltd: It occupies the same professional music ecosystem, providing utility for users managing multiple music apps simultaneously. - Acts as a central control hub for complex multi-app setups, creating a strong ecosystem lock-in - Enables remote triggering of audio events across multiple devices, essential for professional live performance - **[LE05: Digitalism 2000 + AUv3](https://marlvel.ai/intel-report/music/le05-digitalism-2000-auv3)** by Audiobus Pty Ltd: This app competes for the same mobile musician's 'wallet share' and screen time within the music production category. - Delivers a massive, high-quality sound library optimized for performance within mobile AUv3 host environments - Utilizes a robust preset engine that allows for rapid sound design without deep technical knowledge - **[Setlist Carrot - Setlist.fm](https://marlvel.ai/intel-report/music/setlist-carrot-setlist-fm)** by Lee Gaskell: It shares the music utility category, focusing on the organizational side of the user's musical experience. - Automates the creation of Apple Music playlists based on real-time setlist data from live concerts - Provides a specialized utility for gigging musicians that is distinct from audio processing tools - **[OSC Controller PRO TCP UDP](https://marlvel.ai/intel-report/music/osc-controller-pro-tcp-udp)** by Marvin Krueger: This app serves the same professional music tech audience, focusing on remote control and signal routing within a studio setup. - Enables complex remote control of studio hardware via TCP and UDP protocols for live performance - Features a highly flexible canvas for custom workspace organization that targets advanced studio engineers ### New Kids on the Block (What's Innovative) - **[Grip: Control Ableton Live](https://marlvel.ai/intel-report/music/grip-control-ableton-live)** by Adam Baker: A new tool for music producers that leverages voice control to manage complex desktop software. - Implements voice control for hands-free navigation of Ableton Live, a significant UX innovation for producers - **[DJ Duplicate Cleaner](https://marlvel.ai/intel-report/music/dj-duplicate-cleaner)** by Ni Biashara llc: A new entrant in the music utility space, focusing on database management for DJs. - Uses a multi-pass confidence pipeline to safely identify and remove duplicate files in DJ databases ## What's New - **Latest (v1.1.0, 7 years ago):** Added Save functionality and a dedicated menu to view and play back saved files. ## App Momentum (Maintenance) {#momentum} - Last major release May 2026. - Quiet 12 months — stability focus. > **Cadence:** 5 total versions · 3 majors in last 6 months · 3 days since last update · 538 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Vocal Remover for Karaoke is an established music app that is free with in-app purchases. With a 2.19/5 rating from 68 reviews, it shows polarized user reception. > **Bottom Line:** The app captures a privacy-first niche but fails on core isolation quality, so the PM must prioritize model fidelity over new features to prevent further rating erosion. **Best for:** Karaoke enthusiasts, musicians, and content creators who require offline, private audio processing tools. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Rebuild neural isolation model because 2.19-star rating is driven by poor output quality → increase user retention — *The 2.19-star rating is the primary churn risk identified in user sentiment.* _(trade-off: deprioritize Pause the pitch-shifting UI refresh — isolation quality is a higher-impact revenue lever.)_ ### Feature Gaps vs Competitors - Professional-grade FX and filters (available in Hokusai) - Advanced post-processing audio editing tools (available in ZipoApps) ### Outlook: Declining The audio utility market is consolidating around apps that provide both isolation and post-processing, leaving this app exposed. Future growth depends on closing the fidelity gap to prevent users from migrating to more versatile competitors. - 🔴 Poor vocal isolation quality complaints erode the daily active habit, which compounds the rating drag already visible on the platform. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 2.19/5 | | Total Reviews | 68 | | Sentiment | Mixed (40/100) | | Confidence | Medium | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Vocal Remover for Karaoke** (this app) | 2.19/5 | Mixed | Kasidej Khunvattanakarn | | [mLFO](https://marlvel.ai/intel-report/music/net-axart-mlfo) | 4.5/5 | Mixed | Axart Labs OU | | [BandLab – Music Maker & Beats](https://marlvel.ai/intel-report/music/bandlab-music-maker-beats) | 4.8/5 | Mixed | BandLab Singapore Pte Ltd | | [DJ Duplicate Cleaner](https://marlvel.ai/intel-report/music/dj-duplicate-cleaner) | N/A/5 | N/A | Ni Biashara llc | | [LE05: Digitalism 2000 + AUv3](https://marlvel.ai/intel-report/music/le05-digitalism-2000-auv3) | 4.2/5 | N/A | Audiobus Pty Ltd | | [Audiobus Remote](https://marlvel.ai/intel-report/music/audiobus-remote) | 4.6/5 | N/A | Audiobus Pty Ltd | ## Company Profile - **Developer:** Kasidej Khunvattanakarn ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/vocal-remover-for-karaoke/id1393212799?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*mLFO*](https://marlvel.ai/intel-report/music/net-axart-mlfo) (Axart Labs OU) — 4.5/5 Rating | Mixed Sentiment - [*BandLab – Music Maker & Beats*](https://marlvel.ai/intel-report/music/bandlab-music-maker-beats) (BandLab Singapore Pte Ltd) — 4.8/5 Rating | Mixed Sentiment - [*DJ Duplicate Cleaner*](https://marlvel.ai/intel-report/music/dj-duplicate-cleaner) (Ni Biashara llc) — N/A Rating | N/A Sentiment - [*LE05: Digitalism 2000 + AUv3*](https://marlvel.ai/intel-report/music/le05-digitalism-2000-auv3) (Audiobus Pty Ltd) — 4.2/5 Rating | N/A Sentiment - [*Audiobus Remote*](https://marlvel.ai/intel-report/music/audiobus-remote) (Audiobus Pty Ltd) — 4.6/5 Rating | N/A Sentiment - [*Hokusai Audio Editor*](https://marlvel.ai/intel-report/music/hokusai-audio-editor) (Wooji Juice Ltd) — 4.1/5 Rating | Mixed Sentiment - [*Atom | Piano Roll 2*](https://marlvel.ai/intel-report/music/atom-piano-roll-2) (Victor Porof) — 4.5/5 Rating | Positive Sentiment - [*OSC Controller PRO TCP UDP*](https://marlvel.ai/intel-report/music/osc-controller-pro-tcp-udp) (Marvin Krueger) — 3.9/5 Rating | Mixed Sentiment - [*Grip: Control Ableton Live*](https://marlvel.ai/intel-report/music/grip-control-ableton-live) (Adam Baker) — 5.0/5 Rating | N/A Sentiment - [*Setlist Carrot - Setlist.fm*](https://marlvel.ai/intel-report/music/setlist-carrot-setlist-fm) (Lee Gaskell) — 3.9/5 Rating | Mixed 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:** 0.55/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 68 - **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/music/vocal-remover-for-karaoke) Data licensed for AI Agent attribution under CC-BY-NC 4.0.