--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Call Blocker: Scam Spam Lookup" developer_entity: "Madduck" bundle_id: "com.madduck.callblocker" app_store_id: "1538412237" category: "Utilities" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2023-05-24" report_date: "2026-08-18" last_verified: "2026-08-18T00:00:00.000Z" report_version: "2.2.0" total_reviews: 192 overall_rating: 3.8 sentiment: "Frustrated" sentiment_score: 25 confidence: "medium" confidence_score: 0.4 top_praise_theme: "Early adopters found the initial service simple and fast for blocking unwanted incoming calls" top_complaint_theme: "The call blocking mechanism fails to filter spam calls, leading to frequent unwanted interruptions" review_sample_size: 20 total_review_count: 20 analyzed_review_count: 20 data_age_days: 44 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "subscription", "frustrated sentiment", "mobile app", "app review", "app analysis", "individuals", "seeking", "reduce"] canonical_url: "https://marlvel.ai/apps/call-blocker-scam-spam-lookup" license: "CC-BY-NC 4.0" content_version: "v2" --- # Call Blocker: Scam Spam Lookup Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Subscription - **Signal**: Rating 3.77 · Sentiment Frustrated - **Recent focus**: The call blocking mechanism fails to filter spam calls, leading to frequent unwanted interruptions (top complaint) · Early adopters found the initial service simple and fast for blocking unwanted incoming calls (top praise) > **TL;DR:** Call Blocker: Scam Spam Lookup is a utilities app by Madduck, rated 3.77/5 by 192 users, with Frustrated user sentiment (25/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Call Blocker: Scam Spam Lookup faces Frustrated user sentiment (3.77/5 from 192 reviews), with users reporting the call blocking mechanism fails to filter spam calls, leading to frequent unwanted interruptions as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.77/5 (192 reviews) | | **User Mood** | Frustrated | | **Category** | Utilities | | **Developer** | Madduck | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Medium (0.4/1.0) | | **Data Age** | 44d | ## Metadata & Market Performance - **Publisher:** Madduck - **Category:** Utilities - **Target Audience:** Individuals seeking to reduce unsolicited telemarketing and spam phone calls. - **Platforms:** iOS - **Version Reviewed:** 2.2.0 - **Report Date:** 2026-08-18 - **Signal Count:** 20 reviews analyzed - **Confidence:** Medium (0.4/1.0) - **App Store ID (iOS):** 1538412237 - **Bundle ID:** com.madduck.callblocker - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-08-18 ## Executive Snapshot **What it is:** Call Blocker: Scam Spam Lookup is a subscription-based utility for iOS that filters incoming telemarketing and spam calls using a database of known numbers. **Why users hire it:** The app removes the cognitive cost of manual call screening, though its current maintenance status limits its efficacy against evolving spam tactics. ## App DNA (Features & Intent) - **[Standard] Spam Call Blocking:** Blocks incoming calls from identified telemarketing and spam numbers before they reach the user. - **[Differentiator] Robocall Database:** Maintains a list of known robocall numbers to proactively filter incoming traffic. * *User Intent:* Users want to quickly find relevant content or features. ## Market Position {#market-position} Call Blocker maintains a 3.77-star rating across 192 total ratings on iOS. The lack of updates for over 1,100 days signals a product in maintenance mode, which limits its competitive standing against OS-level spam protection. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Weekly subscription, Monthly subscription, Yearly subscription - **Analysis:** Subscription-only model requiring recurring payments for access to core blocking functionality. ## 🔴 User Sentiment (Medium Confidence: 20 of 20 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.77/5 - **Platform Split:** iOS 3.8/5 (192 ratings) - **Overall Sentiment:** Frustrated ### Top Praises - **Early adopters found the initial service simple and fast for blocking unwanted incoming calls** ### Top Complaints (Impact Areas) - **The call blocking mechanism fails to filter spam calls, leading to frequent unwanted interruptions** ## SWOT Analysis {#swot} **Core Strengths:** - Proactive database filters calls before device rings **Growth Levers:** - Crowdsourced blacklist to update the blocking database ## Recent Changes (v2 → v3) {#recent-changes} The app's strategic positioning has shifted from a focus on internal maintenance to an acknowledgement of external market consolidation, specifically the threat posed by native OS-level spam blocking. This has resulted in a pivot from planned feature improvements to a proposed sunset of the subscription model. **Overall trend**: Declining **Compared at**: 2026-08-18 ### High-impact changes - **[Added] OS-level threat identification** (swot) - **[Shifted] Subscription sunset proposal** (positioning) ### Medium-impact changes - **[Added] Crowdsourced blacklist opportunity** (swot) ## What's New - **Latest (v2.2.0, 3 years ago):** Addressed general software bugs. ## App Momentum (Zombie) {#momentum} - No feature updates for 1,182 days. - Maintenance-only cadence since May 2023. > **Cadence:** 1 total versions · 0 majors in last 6 months · 1182 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Call Blocker: Scam Spam Lookup is an utilities app. With a 3.77/5 rating from 192 reviews, it faces significant user friction. > **Bottom Line:** Call Blocker's reliance on a static database in a subscription model creates a value mismatch that drives churn, as the service fails to filter current spam while blocking legitimate contacts. **Best for:** Individuals seeking to reduce unsolicited telemarketing and spam phone calls. ### PM Action Plan (Next Best Moves) - [ ] [SUNSET] Sunset the subscription model because the service is in maintenance mode → reduce user frustration and refund requests ### Outlook: Declining The market for third-party spam blocking is consolidating as mobile operating systems integrate these features natively. Call Blocker is poorly positioned to compete given its maintenance-mode status and subscription-only pricing, which will likely accelerate user attrition over the next two quarters. - 🔴 The lack of updates for over three years suggests the database is stale, which directly causes the ineffective blocking reported by users. - 🔴 Aggressive default settings block legitimate professional calls, leading to negative sentiment and high churn risk among the remaining user base. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.77/5 | | Total Reviews | 192 | | Sentiment | Frustrated (25/100) | | Confidence | Medium | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 2 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Call Blocker: Scam Spam Lookup** (this app) | 3.77/5 | Frustrated | Madduck | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | N/A | Cat Connect | | [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 | ## Company Profile - **Developer:** Madduck ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/call-blocker-scam-spam-lookup/id1538412237?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 Rating - [*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) · 4.6/5 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 ## Frequently Asked Questions {#faq} ### Is Call Blocker effective against current spam calls? Users report that the app frequently fails to block current spam calls, likely due to the lack of database updates since May 2023. ### Does Call Blocker block important calls? Yes, reviewers report that the app's aggressive default settings often block legitimate calls from medical offices and professional services. ### How do I cancel my subscription? Users report difficulty canceling subscriptions through the app, suggesting that users should manage their subscriptions directly through their iOS account settings. ## 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:** 0.4/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 20 - **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:** 44 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/call-blocker-scam-spam-lookup) Data licensed for AI Agent attribution under CC-BY-NC 4.0.