--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Trade Calculator - Sheet Metal" developer_entity: "Matthew Lutterloh" bundle_id: "SheetMetal.TradeCalculator" app_store_id: "6758922258" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2026-02-12" report_date: "2026-09-15" last_verified: "2026-09-15T00:00:00.000Z" report_version: "1.0.1" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 15 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "free", "mobile app", "app review", "app analysis", "construction", "professionals,", "sheet"] canonical_url: "https://marlvel.ai/apps/trade-calculator-sheet-metal" license: "CC-BY-NC 4.0" content_version: "v2" --- # Trade Calculator - Sheet Metal Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 5 > **TL;DR:** Trade Calculator - Sheet Metal is a utilities app by Matthew Lutterloh, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Trade Calculator - Sheet Metal is a utilities app by Matthew Lutterloh. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Utilities | | **Developer** | Matthew Lutterloh | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 15d | ## Metadata & Market Performance - **Publisher:** Matthew Lutterloh - **Category:** Utilities - **Target Audience:** Construction professionals, sheet metal workers, and HVAC technicians requiring precise field calculations. - **Platforms:** iOS - **Version Reviewed:** 1.0.1 - **Report Date:** 2026-09-15 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6758922258 - **Bundle ID:** SheetMetal.TradeCalculator - **Data Window:** Analysis based on signals collected up to 2026-09-15 ## Executive Snapshot **What it is:** Trade Calculator - Sheet Metal is a specialized construction and HVAC utility for iOS that provides native feet-inches-fractions arithmetic and duct sizing solvers. **Why users hire it:** It removes the need for tradespeople to carry separate, expensive physical construction calculators by providing a consolidated, offline-first digital alternative. ## App DNA (Features & Intent) - **[Differentiator] Feet-Inches-Fractions Calculator:** Arithmetic engine supporting native construction dimensions and selectable precision from 1/2 to 1/64. - **[Differentiator] HVAC Duct Calculator:** Duct sizing tool using ASHRAE equal friction method with toggle between Imperial and SI units. - **[Standard] Offline Functionality:** Full calculation suite operates without internet connection, ensuring reliability in remote job-site environments. * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} Trade Calculator - Sheet Metal operates as a niche utility in the construction space, maintaining a 5.0 rating on the App Store. The lack of recent updates (215 days since last store update) signals a maintenance-mode posture that limits its ability to compete with more frequently updated professional tools. ## Monetization Strategy - **Model:** Free - **Tiers:** Free: Full access to all calculator screens and functions - **Analysis:** The app is currently offered as a free utility with no ads or subscriptions, prioritizing user acquisition in the construction niche. ## SWOT Analysis {#swot} **Core Strengths:** - Native feet-inches-fractions arithmetic engine establishes category authority for tradespeople. - Offline-first architecture ensures reliability in remote job-site environments. **Growth Levers:** - Cloud-based project syncing would provide a clear differentiator against legacy physical calculators. ## App Momentum (Zombie) {#momentum} - Dormant release cadence, no recent updates. - Last major release February 2026. > **Cadence:** 1 total versions · 0 majors in last 6 months · 214 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Trade Calculator - Sheet Metal is an utilities app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** Trade Calculator - Sheet Metal provides high-utility tools that effectively replace physical calculators, but the lack of development activity threatens its long-term viability for professional users. Establishing a sustainable revenue stream is necessary to fund the maintenance required to keep the tool reliable. **Best for:** Construction professionals, sheet metal workers, and HVAC technicians requiring precise field calculations. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit core calculation logic because the app has been dormant for 215 days → ensure stability for professional users ### Outlook: Mixed The construction utility market is shifting toward integrated, cloud-connected workflows that Trade Calculator - Sheet Metal currently lacks. Without a transition to an active maintenance and monetization model, the app risks becoming a legacy tool that professional users will eventually abandon for more reliable, updated alternatives. - 🔴 The 215-day update gap indicates a dormant development cycle, which risks app abandonment and potential breakage during future iOS updates. - ⚪ The specialized HVAC and construction toolset provides high utility, but without active maintenance, the app will lose its competitive edge against updated rivals. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Trade Calculator - Sheet Metal** (this app) | 5/5 | N/A | Matthew Lutterloh | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | 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 | | [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) | 4.5/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** Matthew Lutterloh ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/trade-calculator-sheet-metal/id6758922258?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 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 - [*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) · 4.5/5 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 - [*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 ## Frequently Asked Questions {#faq} ### Is Trade Calculator - Sheet Metal suitable for professional HVAC work? Yes, the app includes a dedicated HVAC duct sizing tool based on the ASHRAE equal friction method, designed specifically for professional technicians. ### Does Trade Calculator - Sheet Metal require an internet connection? No, the app is designed for offline use, allowing it to function reliably in remote job-site environments where connectivity is inconsistent. ### Is there a paid version of Trade Calculator - Sheet Metal? Currently, the app is offered as a free utility with no ads or subscriptions, providing full access to all calculator screens and functions. ## 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 15 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/trade-calculator-sheet-metal) Data licensed for AI Agent attribution under CC-BY-NC 4.0.