--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "IN HVAC Calculator" developer_entity: "Gregory Enterprises" bundle_id: "com.GregoryEnterprises.INHVACCalculator" app_store_id: "1219008229" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2024-04-19" report_date: "2026-09-13" last_verified: "2026-09-13T00:00:00.000Z" report_version: "2.0.3" total_reviews: 10 overall_rating: 4.1 confidence: "low" confidence_score: 0.05 data_age_days: 18 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "free", "mobile app", "app review", "app analysis", "professional", "inspectors", "requiring"] canonical_url: "https://marlvel.ai/apps/in-hvac-calculator" license: "CC-BY-NC 4.0" content_version: "v2" --- # IN HVAC Calculator Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 4.1 > **TL;DR:** IN HVAC Calculator is a utilities app by Gregory Enterprises, rated 4.1/5 by 10 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** IN HVAC Calculator is a utilities app by Gregory Enterprises. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.1/5 (10 reviews) | | **Category** | Utilities | | **Developer** | Gregory Enterprises | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 18d | ## Metadata & Market Performance - **Publisher:** Gregory Enterprises - **Category:** Utilities - **Target Audience:** Professional home inspectors requiring quick reference data for HVAC equipment assessment. - **Platforms:** iOS - **Version Reviewed:** 2.0.3 - **Report Date:** 2026-09-13 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 1219008229 - **Bundle ID:** com.GregoryEnterprises.INHVACCalculator - **Data Window:** Analysis based on signals collected up to 2026-09-13 ## Executive Snapshot **What it is:** IN HVAC Calculator is a free utility for professional home inspectors that provides equipment assessment calculations and manufacture date references on iOS. **Why users hire it:** It removes the cognitive friction of manual field calculations for inspectors who need quick, reliable reference data during site visits. ## App DNA (Features & Intent) - **[Standard] HVAC Inspection Calculators:** Calculates equipment circuit requirements and combustion air needs for field assessment. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Differentiator] AC Tonnage Estimator:** Derives air conditioner tonnage based on model number inputs. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Manufacture Date Reference:** Provides approximate age guidelines for HVAC equipment to assist in report tone setting. * *User Intent:* Users need clear guidance to understand and adopt the product quickly. ## Market Position {#market-position} IN HVAC Calculator maintains a static presence in the Utilities category with a 4.1-star rating across 10 reviews. The lack of updates for over 870 days signals a maintenance-only posture that prioritizes stability over market share expansion. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all calculation tools - **Analysis:** The app operates as a free utility with no visible monetization or subscription gates. ## SWOT Analysis {#swot} **Core Strengths:** - Specialized calculation suite provides immediate field utility **Growth Levers:** - Database-backed model number lookups could increase value ## What's New - **Latest (v2.0.3, 2 years ago):** Addressed minor bugs and stability issues. ## App Momentum (Zombie) {#momentum} - Quiet 29 months, maintenance mode only. - Last major release April 2024. > **Cadence:** 1 total versions · 0 majors in last 6 months · 876 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} IN HVAC Calculator is an utilities app that is completely free. It holds a 4.1/5 rating from 10 reviews. > **Bottom Line:** IN HVAC Calculator provides a stable, free reference tool for inspectors, but the multi-year development silence risks obsolescence as mobile OS standards evolve. **Best for:** Professional home inspectors requiring quick reference data for HVAC equipment assessment. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit core calculation logic because the app has been silent for 29 months → ensure continued reliability for professional users. ### Outlook: Stable The professional inspection utility market is increasingly moving toward cloud-connected, database-driven reference tools. IN HVAC Calculator remains a static, offline-first utility, which limits its ability to compete with modern, frequently updated alternatives. - ⚪ The 877-day update gap suggests a maintenance-only posture, which limits the potential for feature-driven growth in the professional inspection market. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.1/5 | | Total Reviews | 10 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **IN HVAC Calculator** (this app) | 4.1/5 | N/A | Gregory Enterprises | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | 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) | 4.5/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** Gregory Enterprises ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/in-hvac-calculator/id1219008229?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 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) · 4.5/5 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 - [*VPN 365-Master WIFI Security*](https://marlvel.ai/apps/vpn-365-master-wifi-security) (vpn fast) · 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 ## Frequently Asked Questions {#faq} ### Is IN HVAC Calculator suitable for professional home inspectors? Yes, the app is designed specifically for professional home inspectors to provide quick reference data for HVAC equipment assessment, including tonnage and combustion air requirements. ### Does IN HVAC Calculator require a subscription? No, the app is free to use and does not contain any subscription gates or visible monetization. ### How often is IN HVAC Calculator updated? The app has been in a maintenance-only state for over two years, with the last update occurring in April 2024. ## 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 18 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/in-hvac-calculator) Data licensed for AI Agent attribution under CC-BY-NC 4.0.