--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Thread Calculator" developer_entity: "GSR Gustav Stursberg GmbH" bundle_id: "com.gsr.gewinderechnerbygsr" app_store_id: "1559560290" category: "Productivity" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2025-11-24" report_date: "2026-08-19" last_verified: "2026-08-19T00:00:00.000Z" report_version: "4.0.0" total_reviews: 2033 overall_rating: 4.2 sentiment: "Thrilled" sentiment_score: 85 confidence: "medium" confidence_score: 0.55 top_praise_theme: "The straightforward and informative interface provides essential data for machinists without unnecessary or distracting features" top_complaint_theme: "The lack of imperial measurement options for hole making limits the utility for users outside metric-only regions" review_sample_size: 51 total_review_count: 51 analyzed_review_count: 51 data_age_days: 9 momentum_velocity: "zombie" intelligence_version: 3 tags: ["productivity", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "machinists,", "engineers,", "metalworkers"] canonical_url: "https://marlvel.ai/apps/thread-calculator-1" license: "CC-BY-NC 4.0" content_version: "v2" --- # Thread Calculator Intelligence Report ## TL;DR {#tldr} - **Category**: Productivity · Free - **Signal**: Rating 4.24 · Sentiment Thrilled - **Recent focus**: The lack of imperial measurement options for hole making limits the utility for users outside metric-only regions (top complaint) · The straightforward and informative interface provides essential data for machinists without unnecessary or distracting features (top praise) > **TL;DR:** Thread Calculator is a productivity app by GSR Gustav Stursberg GmbH, rated 4.24/5 by 2K users, with Thrilled user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Thread Calculator maintains Thrilled user sentiment (4.24/5 from 2K reviews), with users consistently praising the straightforward and informative interface provides essential data for machinists without unnecessary or distracting features. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.24/5 (2K reviews) | | **User Mood** | Thrilled | | **Category** | Productivity | | **Developer** | GSR Gustav Stursberg GmbH | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.55/1.0) | | **Data Age** | 9d | ## Metadata & Market Performance - **Publisher:** GSR Gustav Stursberg GmbH - **Category:** Productivity - **Target Audience:** Machinists, engineers, and metalworkers requiring precise thread and bolt dimensions for manufacturing or repair. - **Platforms:** iOS & Android - **Version Reviewed:** 4.0.0 - **Report Date:** 2026-08-19 - **Signal Count:** 51 reviews analyzed - **Confidence:** Medium (0.55/1.0) - **App Store ID (iOS):** 1559560290 - **Bundle ID:** com.gsr.gewinderechnerbygsr - **Google Play ID:** com.gsr.gewinderechnerbygsr - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-19 ## Executive Snapshot **What it is:** Thread Calculator is a specialized reference tool for machinists and engineers to calculate thread and bolt dimensions on iOS and Android. **Why users hire it:** The tool removes the time-consuming friction of searching through static reference tables for precise internal and external thread measures. ## App DNA (Features & Intent) - **[Standard] Thread Calculation Engine:** Calculates tap hole and bolt dimensions for 20 thread types including M, MF, UNC, and NPT. - **[Differentiator] Cold Forming Calculator:** Provides specific measurements for cold forming processes, strengthening brand authority. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Thread Repair Calculator:** Calculates dimensions required for thread repair tasks, ensuring the app remains a primary reference tool. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. ## Market Position {#market-position} Thread Calculator occupies a narrow niche in the Productivity category, relying on its manufacturer pedigree to maintain a 4.3-star rating across platforms. The lack of updates for 268 days signals a static position that risks losing relevance to more frequently updated engineering utilities. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all calculation tools - **Analysis:** The app operates as a free utility to support the manufacturer's brand and tool distribution. ## 🟢 User Sentiment (Medium Confidence: 51 of 51 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.24/5 - **Platform Split:** iOS 4.4/5 (14 ratings) | Android 4.2/5 (2K ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **The straightforward and informative interface provides essential data for machinists without unnecessary or distracting features** - **The latest update improves navigation and performance, making the app feel cleaner and more intuitive** - **The app serves as a valuable reference tool for new machinists learning trade calculations and drill sizes** ### Top Complaints (Impact Areas) - **The lack of imperial measurement options for hole making limits the utility for users outside metric-only regions** ## SWOT Analysis {#swot} **Core Strengths:** - 130-year manufacturer pedigree provides high trust for technical data. - Focused utility design eliminates cognitive load for professional machinists. - Broad thread-type coverage serves as a primary reference tool. **Growth Levers:** - Integrate imperial measurement support to capture the US and UK machining segments. - Add a material-specific drill-speed calculator to move beyond static table data. ## Recent Changes (v2 → v3) {#recent-changes} The app's competitive posture has shifted from a static brand utility to a vulnerable asset facing pressure from more frequently updated engineering tools. While the product remains unchanged, the strategic outlook now prioritizes imperial measurement integration and data accuracy audits to prevent user churn. **Overall trend**: Stable **Compared at**: 2026-08-19 ### Medium-impact changes - **[Added] Expanded Competitive Threats** (swot) - **[Shifted] Critical Outlook Narrative** (positioning) - **[Added] New Growth Opportunities** (swot) ## What's New - **Latest (v4.0.0, 9 months ago):** Expanded device compatibility and added in-app language switching. ## App Momentum (Zombie) {#momentum} - No feature updates for nine months. - Maintains stable 4.3-star rating. > **Cadence:** 1 total versions · 0 majors in last 6 months · 270 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Thread Calculator is a market-leading productivity app that is completely free. With a 4.24/5 rating from 2K reviews, it delivers strong user satisfaction. > **Bottom Line:** Thread Calculator serves as a stable brand utility, but the nine-month update silence risks obsolescence against more dynamic rivals. Integrating imperial measurements would unlock the US and UK markets, shifting the app from a static reference to an essential daily tool. **Best for:** Machinists, engineers, and metalworkers requiring precise thread and bolt dimensions for manufacturing or repair. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship imperial measurement support because user reviews flag its absence as a primary utility barrier → increase user retention in non-metric regions. ### Outlook: Stable The engineering utility market is consolidating around tools that provide both metric and imperial support, leaving Thread Calculator exposed in non-metric regions. Resuming development to address these gaps is necessary to prevent churn to more comprehensive competitors. - 🔴 The nine-month update silence suggests the app is in maintenance mode, which limits its ability to respond to user requests for imperial support. - 🟢 High user trust in the manufacturer pedigree keeps the rating stable, providing a solid foundation for future feature expansion if development resumes. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.24/5 | | Total Reviews | 2K | | Sentiment | Thrilled (85/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Thread Calculator** (this app) | 4.24/5 | Thrilled | GSR Gustav Stursberg GmbH | | [Mitsu: AI Life Coach](https://marlvel.ai/apps/mitsu-ai-life-coach) | N/A/5 | N/A | C2 Insights | | [ChatGPT](https://marlvel.ai/apps/chatgpt) | 4.8/5 | n/a | OpenAI OpCo, LLC | | [HitWave](https://marlvel.ai/apps/ciendor-applications-hitwave) | 2.6/5 | Mixed | Ciendor Holdings Corp. LTD | | [Paper: Sketch, Draw & Create](https://marlvel.ai/apps/paper-sketch-draw-create) | 4.6/5 | N/A | Evernote Corporation | | [Pattrn - Discipline Tracker](https://marlvel.ai/apps/pattrn-discipline-tracker) | 4.8/5 | Thrilled | Pedro Schott | ## Company Profile - **Developer:** GSR Gustav Stursberg GmbH ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/thread-calculator/id1559560290?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.gsr.gewinderechnerbygsr&hl=en&gl=us) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Mitsu: AI Life Coach*](https://marlvel.ai/apps/mitsu-ai-life-coach) (C2 Insights) · N/A Rating - [*ChatGPT*](https://marlvel.ai/apps/chatgpt) (OpenAI OpCo, LLC) · 4.8/5 Rating - [*HitWave*](https://marlvel.ai/apps/ciendor-applications-hitwave) (Ciendor Holdings Corp. 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Yes, the app provides precise dimensions for 20 thread types, making it a useful reference tool for daily tasks in manufacturing and repair. ### Does Thread Calculator support imperial measurements? Currently, the app focuses on metric standards. Users have requested imperial support for hole making, but it is not yet available in the current version. ### Is Thread Calculator free to use? Yes, the app is free and provides access to all calculation tools, serving as a brand utility for GSR Gustav Stursberg GmbH. ## 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:** 0.55/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 51 - **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:** 9 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/thread-calculator-1) Data licensed for AI Agent attribution under CC-BY-NC 4.0.