--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Mohr's CSA" developer_entity: "DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI" bundle_id: "com.tr.DRH.mohrCSA2" app_store_id: "914295585" category: "Education" primary_platform: "ios" primary_monetization: "Paid" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-08-21" report_date: "2026-09-17" last_verified: "2026-09-17T00:00:00.000Z" report_version: "2.38" total_reviews: 0 confidence: "low" confidence_score: 0.2 data_age_days: 43 momentum_velocity: "zombie" intelligence_version: 2 tags: ["education", "paid", "mobile app", "app review", "app analysis", "engineering", "students", "practicing"] canonical_url: "https://marlvel.ai/apps/mohr-s-csa" license: "CC-BY-NC 4.0" content_version: "v2" --- # Mohr's CSA Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Paid > **TL;DR:** Mohr's CSA is a education app by DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Mohr's CSA is a education app by DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Education | | **Developer** | DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI | | **Pricing** | Paid | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 43d | ## Metadata & Market Performance - **Publisher:** DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI - **Category:** Education - **Target Audience:** Engineering students and practicing engineers requiring mobile tools for stress analysis and mechanical design calculations. - **Platforms:** iOS - **Version Reviewed:** 2.38 - **Report Date:** 2026-09-17 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 914295585 - **Bundle ID:** com.tr.DRH.mohrCSA2 - **Data Window:** Analysis based on signals collected up to 2026-09-17 ## Executive Snapshot **What it is:** Mohr's CSA is a specialized engineering utility for 2D and 3D stress analysis on iOS. **Why users hire it:** It replaces manual formula sheets and complex graphing with an interactive, touch-based interface for stress state visualization. ## App DNA (Features & Intent) - **[Differentiator] Interactive Mohr's Circle:** Visual stress analysis tool allowing users to tap the screen to explore stress states instantly. - **[Differentiator] Custom Keypad:** Specialized keypad for formula entry with intelligent handling of unpaired parentheses. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] PDF Export:** Export results to PDF for use in external document editors. ## Market Position {#market-position} Mohr's CSA occupies a niche utility space in the Education category, priced at $2.99. The 13-month update gap indicates a mature product lifecycle rather than an active competitive expansion. ## Monetization Strategy - **Model:** Paid - **Tiers:** $2.99 one-time purchase - **Price:** iOS: $2.99 - **Analysis:** Paid model targeting engineering students and professionals with a one-time utility purchase. ## SWOT Analysis {#swot} **Core Strengths:** - Interactive Mohr's Circle visualization allows instant stress state exploration - Custom keypad reduces input errors for complex engineering formulas **Growth Levers:** - Localized pricing in high-ARPU engineering markets could capture students currently using free, ad-supported desktop alternatives ## What's New - **Latest (v2.38, 1 years ago):** General bug fixes and performance improvements. ## App Momentum (Zombie) {#momentum} - No major releases in 13 months. - Maintenance-only cadence since August 2025. > **Cadence:** 1 total versions · 0 majors in last 6 months · 391 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Mohr's CSA is an education app that is a paid app. > **Bottom Line:** Mohr's CSA maintains a stable utility for its core engineering audience, but the 13-month release gap risks obsolescence as mobile OS standards evolve, potentially forcing users toward web-based alternatives. **Best for:** Engineering students and practicing engineers requiring mobile tools for stress analysis and mechanical design calculations. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit compatibility for latest iOS versions because the app has been silent for 13 months → maintain platform relevance ### Outlook: Stable The engineering utility market is shifting toward browser-based, cross-platform tools that remove upfront costs. Mohr's CSA remains exposed: its lack of active development prevents it from integrating modern mobile features like cloud-sync or collaborative sharing, which are becoming standard in professional engineering workflows. - ⚪ The 13-month update gap indicates a mature, maintenance-mode product that serves a static engineering need without requiring frequent feature expansion. - 🔴 Stalled development cadence increases the risk of OS-level incompatibility, which would erode the app's utility for professional users on newer hardware. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Paid | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Mohr's CSA** (this app) | N/A/5 | N/A | DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI | | [Catbus Student](https://marlvel.ai/apps/catbus-student) | 4.3/5 | N/A | Cohota Join Stock Company | | [Quran Treasure Island for Kids](https://marlvel.ai/apps/quran-treasure-island-for-kids) | 4.9/5 | Mixed | Akeela Manekia | | [Valencia College - MyVC](https://marlvel.ai/apps/valencia-college-myvc) | 5.0/5 | N/A | Valencia College | | [자주 틀리는 우리말](https://marlvel.ai/apps/app--424) | N/A/5 | N/A | DaolSoft, Co., Ltd. | | [달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머](https://marlvel.ai/apps/azlabs-dalstudy) | N/A/5 | N/A | SuWon Choi | ## Company Profile - **Developer:** DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI - **Website:** [https://appsforeng.com/mohrs-circle-stress-analysi.html](https://appsforeng.com/mohrs-circle-stress-analysi.html) ## Data Sources & Links - **App Store ID:** 914295585 - **Dev Site:** [Official Website](https://appsforeng.com/mohrs-circle-stress-analysi.html) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*Catbus Student*](https://marlvel.ai/apps/catbus-student) (Cohota Join Stock Company) · 4.3/5 Rating - [*Quran Treasure Island for Kids*](https://marlvel.ai/apps/quran-treasure-island-for-kids) (Akeela Manekia) · 4.9/5 Rating - [*Valencia College - MyVC*](https://marlvel.ai/apps/valencia-college-myvc) (Valencia College) · 5.0/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating - [*천자문 워치*](https://marlvel.ai/apps/app--385) (kim juyoung) · N/A Rating - [*천자문 공부 도우미*](https://marlvel.ai/apps/app--382) (kim juyoung) · 5.0/5 Rating - [*첫화면 사자성어*](https://marlvel.ai/apps/app--507) (ideal app team) · 4.8/5 Rating - [*한중일 상용한자*](https://marlvel.ai/apps/app--430) (DaolSoft, Co., Ltd.) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Mohr's CSA suitable for professional engineering work? Mohr's CSA is designed as a portable calculation aid for stress analysis, though its 13-month update gap suggests it is best used as a supplementary tool rather than a primary professional workstation. ### Are there free alternatives to Mohr's CSA? Yes, various web-based engineering calculators provide similar stress transformation and Mohr's Circle visualization capabilities without the $2.99 upfront cost. ### Does Mohr's CSA support 3D stress analysis? Yes, the app includes graphical representation and analysis for both 2D and 3D stress states. ## 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 43 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/mohr-s-csa) Data licensed for AI Agent attribution under CC-BY-NC 4.0.