--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Carpenter's Calculator" developer_entity: "Charles Volow" bundle_id: "com.charlie-volow.carpenters-calculator" app_store_id: "6462017918" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2023-08-23" report_date: "2026-09-08" last_verified: "2026-09-08T00:00:00.000Z" report_version: "1.0" total_reviews: 17 overall_rating: 5 sentiment: "Thrilled" sentiment_score: 90 confidence: "medium" confidence_score: 0.5 top_praise_theme: "The absence of advertisements and predatory monetization allows users to focus entirely on calculation tasks" review_sample_size: 5 total_review_count: 5 analyzed_review_count: 5 data_age_days: 34 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "woodworkers", "contractors", "require"] canonical_url: "https://marlvel.ai/apps/carpenter-s-calculator" license: "CC-BY-NC 4.0" content_version: "v2" --- # Carpenter's Calculator Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 5 · Sentiment Thrilled - **Recent focus**: The absence of advertisements and predatory monetization allows users to focus entirely on calculation tasks (top praise) > **TL;DR:** Carpenter's Calculator is a utilities app by Charles Volow, rated 5/5 by 17 users, with Thrilled user sentiment (90/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Carpenter's Calculator maintains Thrilled user sentiment (5/5 from 17 reviews), with users consistently praising the absence of advertisements and predatory monetization allows users to focus entirely on calculation tasks. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (17 reviews) | | **User Mood** | Thrilled | | **Category** | Utilities | | **Developer** | Charles Volow | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Medium (0.5/1.0) | | **Data Age** | 34d | ## Metadata & Market Performance - **Publisher:** Charles Volow - **Category:** Utilities - **Target Audience:** Woodworkers and contractors who require precise US Customary unit arithmetic for construction measurements. - **Platforms:** iOS - **Version Reviewed:** 1.0 - **Report Date:** 2026-09-08 - **Signal Count:** 5 reviews analyzed - **Confidence:** Medium (0.5/1.0) - **App Store ID (iOS):** 6462017918 - **Bundle ID:** com.charlie-volow.carpenters-calculator - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-09-08 ## Executive Snapshot **What it is:** Carpenter's Calculator is a specialized utility for woodworkers and contractors to perform mixed-number arithmetic with US Customary units on iOS. **Why users hire it:** The app removes the cognitive friction of manual fraction conversion during construction projects, serving as a dedicated alternative to standard scientific calculators. ## App DNA (Features & Intent) - **[Differentiator] Mixed-number arithmetic:** Dedicated buttons for 'and' and fraction bars to perform calculations with feet, inches, and fractions. - **[Differentiator] Fraction rounding:** Evaluates expressions and rounds results to the nearest 32nd of an inch. - **[Standard] Expression history:** Stores the last 20 expressions and results for recall and reuse. ## Market Position {#market-position} Carpenter's Calculator holds a 5-star rating across 17 reviews, indicating high satisfaction within its specialized utility niche. The lack of updates for 1112 days suggests a stable, maintenance-only position rather than an active growth strategy. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** Carpenter's Calculator is distributed as a free utility with no visible monetization or in-app purchase gates. ## 🟢 User Sentiment (Medium Confidence: 5 of 5 reviews analyzed) {#user-sentiment} - **Overall Rating:** 5/5 - **Platform Split:** iOS 5.0/5 (17 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **The absence of advertisements and predatory monetization allows users to focus entirely on calculation tasks** - **Specialized math functions for Imperial fractions and trigonometry provide immediate utility for woodworking and workshop projects** - **The straightforward interface and quick tutorial allow users to start calculating without unnecessary distractions or complexity** ## SWOT Analysis {#swot} **Core Strengths:** - Fraction-rounding logic to the nearest 32nd of an inch simplifies construction workflows. - Ad-free interface prioritizes core utility over revenue generation. **Growth Levers:** - Voluntary donation integration could capture revenue from users willing to pay. ## App Momentum (Zombie) {#momentum} - No updates for 37 months. - Maintains 5-star rating baseline. > **Cadence:** 1 total versions · 0 majors in last 6 months · 1112 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Carpenter's Calculator is an utilities app that is completely free. It holds a 5/5 rating from 17 reviews. > **Bottom Line:** Carpenter's Calculator provides high utility for its niche, but the three-year development silence creates a long-term risk of platform incompatibility. Implementing a voluntary donation model would allow the developer to sustain the tool without compromising the ad-free experience that users value. **Best for:** Woodworkers and contractors who require precise US Customary unit arithmetic for construction measurements. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Implement voluntary donation link because users explicitly request a way to support the developer → increase sustainability. ### Outlook: Stable Carpenter's Calculator occupies a stable, niche position where its core utility remains relevant despite the lack of recent updates. The PM should focus on maintaining platform compatibility to ensure this tool remains a reliable, ad-free resource for its core woodworking audience. - ⚪ The 37-month development silence suggests the app is in maintenance mode, which limits future feature expansion but maintains current utility. - 🟢 High user satisfaction and requests for donation options indicate a loyal, high-intent audience that values the current ad-free, focused design. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 17 | | Sentiment | Thrilled (90/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Carpenter's Calculator** (this app) | 5/5 | Thrilled | Charles Volow | | [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 | | [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 | ## Company Profile - **Developer:** Charles Volow - **Website:** [https://charlie-volow.com/carpenters_calculator.html](https://charlie-volow.com/carpenters_calculator.html) ## Data Sources & Links - **App Store ID:** 6462017918 - **Dev Site:** [Official Website](https://charlie-volow.com/carpenters_calculator.html) - **Sources:** Developer website content, App store metadata, User reviews. ## 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 - [*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 - [*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 Carpenter's Calculator free to use? Yes, Carpenter's Calculator is currently distributed as a free utility with no advertisements or in-app purchases. ### Does this app work for construction measurements? Yes, the app is specifically designed for woodworkers and contractors, featuring mixed-number arithmetic and fraction rounding to the nearest 32nd of an inch. ### Is Carpenter's Calculator still being updated? The app has not received a store update in over three years, suggesting it is currently in a maintenance-only state. ## 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:** 0.5/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 5 - **Data Sources:** user reviews, developer website, 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:** 34 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/carpenter-s-calculator) Data licensed for AI Agent attribution under CC-BY-NC 4.0.