--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Calculator of Air" developer_entity: "yoshihito sakagami" bundle_id: "jp.ybb.wgsmw796.AIR-CALC" app_store_id: "1112518507" category: "Productivity" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-04-20" report_date: "2026-09-14" last_verified: "2026-09-14T00:00:00.000Z" report_version: "1.2.3" total_reviews: 14 overall_rating: 4.6 confidence: "low" confidence_score: 0.2 data_age_days: 53 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["productivity", "free", "mobile app", "app review", "app analysis", "engineers,", "cleanroom", "managers,"] canonical_url: "https://marlvel.ai/apps/calculator-of-air" license: "CC-BY-NC 4.0" content_version: "v2" --- # Calculator of Air Intelligence Report ## TL;DR {#tldr} - **Category**: Productivity · Free - **Signal**: Rating 4.64 > **TL;DR:** Calculator of Air is a productivity app by yoshihito sakagami, rated 4.64/5 by 14 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Calculator of Air is a productivity app by yoshihito sakagami. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.64/5 (14 reviews) | | **Category** | Productivity | | **Developer** | yoshihito sakagami | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 53d | ## Metadata & Market Performance - **Publisher:** yoshihito sakagami - **Category:** Productivity - **Target Audience:** HVAC engineers, cleanroom managers, and industrial technicians. - **Platforms:** iOS - **Version Reviewed:** 1.2.3 - **Report Date:** 2026-09-14 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 1112518507 - **Bundle ID:** jp.ybb.wgsmw796.AIR-CALC - **Data Window:** Analysis based on signals collected up to 2026-09-14 ## Executive Snapshot **What it is:** Calculator of Air is a psychrometric calculation tool for HVAC and industrial professionals, available on iOS. **Why users hire it:** The tool replaces manual psychrometric chart lookups with automated numerical analysis, removing the risk of human error in industrial drying and cleanroom management workflows. ## App DNA (Features & Intent) - **[Differentiator] Psychrometric Calculation Engine:** Computes air properties using the Wexler-Hyland formulation for six parameters, establishing category authority for professional HVAC workflows. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Memory Function:** Stores calculated values to enable multi-step air-state calculations, reducing manual entry time for repeat professional users. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Companion App Integration:** Links to HumidCalc to display additional air-property parameters, expanding the developer's total ad-impression volume. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Calculator of Air maintains a 4.6-star rating across 14 reviews, positioning itself as a niche utility for professional HVAC workflows. The lack of updates in 147 days suggests a stable, maintenance-focused position rather than an aggressive growth strategy. ## Monetization Strategy - **Model:** Free - **Tiers:** Free with ad-supported interface - **Analysis:** The app is free to use, relying on AdMob banner inventory for monetization. ## SWOT Analysis {#swot} **Core Strengths:** - Wexler–Hyland formulation establishes category authority for professional HVAC workflows - Memory function reduces calculation time for complex industrial multi-step processes **Growth Levers:** - Localized pricing or a Pro tier could capture value from professional users ## What's New - **Latest (v1.2.3, 4 months ago):** Enhanced numerical analysis algorithms for faster, more accurate relative humidity and dew point calculations at extreme low temperatures. ## App Momentum (Maintenance) {#momentum} - Ships maintenance updates only. - Last major release 147 days ago. > **Cadence:** 1 total versions · 1 majors in last 6 months · 147 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Calculator of Air is a productivity app that is completely free. It holds a 4.64/5 rating from 14 reviews. > **Bottom Line:** Calculator of Air provides high-accuracy psychrometric calculations that retain core professional users, but the maintenance-only cadence risks ceding the niche to more active rivals. Investing in flexible atmospheric pressure settings would unlock utility for high-altitude industrial segments. **Best for:** HVAC engineers, cleanroom managers, and industrial technicians. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit atmospheric pressure settings because fixed standard pressure limits industrial utility → increase addressable professional market ### Outlook: Stable The market for industrial calculation tools is shifting toward integrated, cloud-connected workflows. Calculator of Air remains a reliable, standalone utility, but its lack of recent feature investment leaves it exposed to competitors that offer broader atmospheric modeling and cloud-sync capabilities. - ⚪ The 147-day update gap indicates a stable, maintenance-only posture that prioritizes core engine reliability over new feature expansion. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.64/5 | | Total Reviews | 14 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Calculator of Air** (this app) | 4.64/5 | N/A | yoshihito sakagami | | [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:** yoshihito sakagami - **Website:** [https://admob-app-id-9084168951.firebaseapp.com](https://admob-app-id-9084168951.firebaseapp.com) ## Data Sources & Links - **App Store ID:** 1112518507 - **Dev Site:** [Official Website](https://admob-app-id-9084168951.firebaseapp.com) - **Sources:** Developer website content, App store metadata. ## 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. LTD) · 2.6/5 Rating - [*Paper: Sketch, Draw & Create*](https://marlvel.ai/apps/paper-sketch-draw-create) (Evernote Corporation) · 4.6/5 Rating - [*Pattrn - Discipline Tracker*](https://marlvel.ai/apps/pattrn-discipline-tracker) (Pedro Schott) · 4.8/5 Rating | Excellent Sentiment - [*Perplexity - AI Search & Chat*](https://marlvel.ai/apps/perplexity-ai-search-chat) (Perplexity AI, Inc.) · 4.8/5 Rating - [*ScreenZen- Screen Time Control*](https://marlvel.ai/apps/screenzen-screen-time-control) (ScreenZen LLC) · 4.8/5 Rating | Excellent Sentiment - [*SpaceDesk App*](https://marlvel.ai/apps/spacedesk-app) (Hawsabah) · N/A Rating - [*VPN 360: Fast & Secure Proxy*](https://marlvel.ai/apps/co-infinitysoft-vpn360) (Pango GmbH) · 4.5/5 Rating - [*VPN - Super Unlimited Proxy*](https://marlvel.ai/apps/vpn-super-unlimited-proxy) (Mobile Jump Pte Ltd) · 4.7/5 Rating | Excellent Sentiment ## Frequently Asked Questions {#faq} ### Is Calculator of Air suitable for professional HVAC design? Yes, the app uses the Wexler–Hyland formulation and numerical analysis to provide the high-accuracy results required for HVAC and cleanroom management workflows. ### Does Calculator of Air work at high altitudes? No, the app uses a fixed atmospheric pressure of 1013.25 hPa, which may result in inaccurate calculations for high-altitude industrial environments. ### What is the difference between Calculator of Air and HumidCalc? Calculator of Air provides the core six psychrometric parameters, while the companion app HumidCalc offers additional air-property parameters for more complex analysis. ## 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:** 53 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/calculator-of-air) Data licensed for AI Agent attribution under CC-BY-NC 4.0.