--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Radiator Calculator Pro" developer_entity: "DigitalKind Ltd" bundle_id: "com.magnetic.RadiatorCalculator" app_store_id: "6743349772" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-05-15" report_date: "2026-08-20" last_verified: "2026-08-20T00:00:00.000Z" report_version: "1.5" total_reviews: 0 confidence: "low" confidence_score: 0.2 data_age_days: 42 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["utilities", "free", "mobile app", "app review", "app analysis", "plumbers,", "heating", "engineers,"] canonical_url: "https://marlvel.ai/apps/radiator-calculator-pro" license: "CC-BY-NC 4.0" content_version: "v2" --- # Radiator Calculator Pro Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free > **TL;DR:** Radiator Calculator Pro is a utilities app by DigitalKind Ltd, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Radiator Calculator Pro is a utilities app by DigitalKind Ltd. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Utilities | | **Developer** | DigitalKind Ltd | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 42d | ## Metadata & Market Performance - **Publisher:** DigitalKind Ltd - **Category:** Utilities - **Target Audience:** Plumbers, heating engineers, heat-pump installers, and homeowners managing renovation projects. - **Platforms:** iOS - **Version Reviewed:** 1.5 - **Report Date:** 2026-08-20 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6743349772 - **Bundle ID:** com.magnetic.RadiatorCalculator - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-20 ## Executive Snapshot **What it is:** Radiator Calculator Pro is a utility for heating engineers and homeowners to calculate room-specific heat loss and radiator sizing on iOS. **Why users hire it:** The app removes the manual complexity of EN 442-compliant calculations for low-temperature heat-pump systems, which are increasingly common in modern renovations. ## App DNA (Features & Intent) - **[Differentiator] Heat-Pump System Sizing:** Calculates radiator output for low-temperature systems using ΔT35 or ΔT30 settings to account for lower flow temperatures. - **[Standard] Multi-Factor Heat Loss Analysis:** Calculates room heat requirements by factoring insulation levels, glazing, external wall count, and floor/roof exposure. - **[Standard] Room Preset Library:** Provides 8 room-type presets including garage, conservatory, and bathroom to automate standard heat-loss variables. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Radiator Calculator Pro occupies a niche utility space for heating professionals, currently maintaining a 4+ content rating on iOS. The lack of recent major updates suggests a stable, maintenance-focused position rather than an aggressive growth play. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** Radiator Calculator Pro is currently free with no identified in-app purchase or subscription gates, limiting immediate monetization but potentially driving user acquisition among trade professionals. ## SWOT Analysis {#swot} **Core Strengths:** - Heat-pump sizing modes provide technical differentiation for low-temperature system installers. - Multi-factor heat loss analysis automates complex EN 442-compliant calculations. **Growth Levers:** - Integration of direct-to-supplier quote requests could monetize the free user base. - Expansion into automated bill-of-materials generation would increase professional value. ## Recent Changes (v2 → v3) {#recent-changes} The app's competitive assessment shifted from viewing its free, maintenance-only status as a neutral acquisition tool to identifying it as a strategic risk that undermines professional credibility. No functional product changes occurred, as the app remains in a 96-day maintenance cycle. **Overall trend**: Stable **Compared at**: 2026-08-20 ### High-impact changes - **[Shifted] Monetization Strategy Assessment** (positioning) ### Medium-impact changes - **[Added] Expanded Competitive Threats** (swot) - **[Added] Professional Workflow Weaknesses** (swot) - **[Shifted] PM Action Item Focus** (positioning) ## What's New - **Latest (v1.5, 3 months ago):** Version 1.5 focuses exclusively on performance enhancements and general bug fixes. ## App Momentum (Maintenance) {#momentum} - Ships bug fixes at 14-week cadence. - No major feature additions since launch. > **Cadence:** 1 total versions · 0 majors in last 6 months · 96 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Radiator Calculator Pro is an utilities app that is completely free. > **Bottom Line:** Radiator Calculator Pro provides a specialized utility for heat-pump installers, but the lack of active development risks stagnation against broader construction tools. Prioritizing project-export features would increase professional stickiness and justify a move toward a freemium model. **Best for:** Plumbers, heating engineers, heat-pump installers, and homeowners managing renovation projects. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship project-sharing features because the current manual export limits multi-user trade workflows → increase professional retention ### Outlook: Stable The market for heating-utility tools is shifting toward integrated professional suites that handle both sizing and material procurement. Radiator Calculator Pro remains a stable, single-purpose tool, but its lack of feature expansion leaves it exposed to generalist competitors that may soon replicate its heat-pump sizing logic. - ⚪ The 14-week update cadence indicates a maintenance-only posture, which limits the app's ability to respond to changing heat-pump installation standards. - 🟢 The inclusion of ΔT35 and ΔT30 sizing modes aligns with the industry shift toward low-temperature systems, providing a durable technical moat. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Radiator Calculator Pro** (this app) | N/A/5 | N/A | DigitalKind Ltd | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | N/A | Cat Connect | | [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 | | [Potatso](https://marlvel.ai/apps/potatso) | 4.4/5 | n/a | Potatso Lab LTD | ## Company Profile - **Developer:** DigitalKind Ltd - **Website:** [https://apps.apple.com/us/developer/digitalkind-ltd/id1557937157?uo=4](https://apps.apple.com/us/developer/digitalkind-ltd/id1557937157?uo=4) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/radiator-calculator-pro/id6743349772?uo=4) - **Dev Site:** [Official Website](https://apps.apple.com/us/developer/digitalkind-ltd/id1557937157?uo=4) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 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 - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 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 - [*도사폰 (만세력 역학도구)*](https://marlvel.ai/apps/app--656) (Softchaser Company Limited) · 5.0/5 Rating ## Frequently Asked Questions {#faq} ### Is Radiator Calculator Pro suitable for professional heating engineers? Yes, the app includes EN 442-compliant calculations and specific modes for low-temperature heat-pump systems, making it a useful tool for professional sizing schedules. ### Does Radiator Calculator Pro charge a subscription fee? No, Radiator Calculator Pro is currently free to use with no identified in-app purchases or subscription gates. ### What is the difference between this and a standard radiator calculator? Radiator Calculator Pro includes specific ΔT35 and ΔT30 settings, which allow users to size radiators for low-temperature heat-pump systems rather than just standard boilers. ## 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:** 42 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/radiator-calculator-pro) Data licensed for AI Agent attribution under CC-BY-NC 4.0.