--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Concrete Calculator - Slab" developer_entity: "Mikhail Nikitin" bundle_id: "com.calculate.concrete" app_store_id: "6758729845" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2026-04-08" report_date: "2026-09-07" last_verified: "2026-09-07T00:00:00.000Z" report_version: "1.0" total_reviews: 8 overall_rating: 5 sentiment: "Thrilled" sentiment_score: 90 confidence: "low" confidence_score: 0.3 top_praise_theme: "The footing calculator provides reliable and fast estimates for site work without unnecessary interface clutter" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 24 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "contractors,", "engineers,", "builders"] canonical_url: "https://marlvel.ai/apps/concrete-calculator-slab" license: "CC-BY-NC 4.0" content_version: "v2" --- # Concrete Calculator - Slab Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 5 · Sentiment Thrilled - **Recent focus**: The footing calculator provides reliable and fast estimates for site work without unnecessary interface clutter (top praise) > **TL;DR:** Concrete Calculator - Slab is a utilities app by Mikhail Nikitin, rated 5/5 by 8 users, with Thrilled user sentiment (90/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Concrete Calculator - Slab maintains Thrilled user sentiment (5/5 from 8 reviews), with users consistently praising the footing calculator provides reliable and fast estimates for site work without unnecessary interface clutter. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (8 reviews) | | **User Mood** | Thrilled | | **Category** | Utilities | | **Developer** | Mikhail Nikitin | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 24d | ## Metadata & Market Performance - **Publisher:** Mikhail Nikitin - **Category:** Utilities - **Target Audience:** Contractors, engineers, and builders requiring precise material volume and cost estimates for construction projects. - **Platforms:** iOS - **Version Reviewed:** 1.0 - **Report Date:** 2026-09-07 - **Signal Count:** 1 review analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6758729845 - **Bundle ID:** com.calculate.concrete - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-09-07 ## Executive Snapshot **What it is:** Concrete Calculator - Slab is a construction estimation utility for contractors and engineers, providing 15 specialized calculators for concrete and material volumes on iOS. **Why users hire it:** The app removes the manual calculation friction for site work by providing instant, offline-accessible volume and cost estimates for common masonry and concrete projects. ## App DNA (Features & Intent) - **[Standard] Specialized Construction Calculators:** Fifteen calculators for slabs, footings, walls, and stairs, providing volume and bag counts. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Cost Estimation Tool:** Compares bag-based purchases versus ready-mix delivery costs to inform procurement. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Offline Functionality:** Performs all calculations without requiring an active internet connection, critical for remote job sites. * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} Concrete Calculator - Slab maintains a 5-star rating across 8 total ratings, positioning itself as a high-utility, low-friction tool for construction professionals. The lack of updates over the last 152 days suggests a stable, feature-complete product rather than an active growth-stage entrant. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all 15 calculators - **Analysis:** The app is currently offered as a free utility with no visible IAP or subscription gates. ## 🟢 User Sentiment (Low Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Rating:** 5/5 - **Platform Split:** iOS 5.0/5 (8 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **The footing calculator provides reliable and fast estimates for site work without unnecessary interface clutter** ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture eliminates connectivity dependency for remote job sites - Specialized calculator suite covers 15 distinct construction scenarios **Growth Levers:** - Integration of real-time ready-mix pricing APIs could unlock a premium B2B tier ## Recent Changes (v2 → v3) {#recent-changes} The app's strategic positioning has shifted from a passive maintenance stance to an active evaluation of professional workflow requirements, specifically regarding project-saving and procurement integration. **Overall trend**: Stable **Compared at**: 2026-09-07 ### Medium-impact changes - **[Added] New SWOT items identified** (swot) - **[Shifted] Strategic outlook pivot** (positioning) - **[Shifted] PM action item focus** (positioning) ## App Momentum (Zombie) {#momentum} - Quiet 5 months, no major releases. - Maintains 5-star rating on early feedback. > **Cadence:** 1 total versions · 0 majors in last 6 months · 151 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Concrete Calculator - Slab is an utilities app that is completely free. It holds a 5/5 rating from 8 reviews. > **Bottom Line:** The offline-first utility provides immediate value for site-based estimation, but the lack of persistent project storage limits its utility for professional workflows. Adding project-saving functionality would unlock higher retention among this app contractor audience. **Best for:** Contractors, engineers, and builders requiring precise material volume and cost estimates for construction projects. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit user demand for project-saving functionality because reviews highlight the need for multi-day site estimates → increase retention ### Outlook: Stable The construction utility market is consolidating around tools that offer both calculation and procurement management. Concrete Calculator - Slab remains stable but exposed to rivals that offer cloud-based project syncing, which is the next logical step for professional contractor workflows. - ⚪ The five-month development gap suggests a maintenance-mode posture, which limits the app's ability to respond to emerging competitor features. - 🟢 The 5-star rating indicates that the core estimation logic meets the high-intent needs of the current user base. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 8 | | Sentiment | Thrilled (90/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Concrete Calculator - Slab** (this app) | 5/5 | Thrilled | Mikhail Nikitin | | [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:** Mikhail Nikitin ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/concrete-calculator-slab/id6758729845?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 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 Concrete Calculator - Slab suitable for professional contractors? Yes, the app provides 15 specialized calculators for concrete and material estimation, including footing and slab calculations, which are designed for professional site work. ### Does Concrete Calculator - Slab require an internet connection? No, the app is built for the jobsite and performs all calculations completely offline, ensuring functionality in remote areas without connectivity. ### Are there any hidden costs or subscriptions in the app? No, the app is currently provided as a free utility with full access to all 15 calculators and no visible subscription gates or in-app purchases. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **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:** 24 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/concrete-calculator-slab) Data licensed for AI Agent attribution under CC-BY-NC 4.0.