--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Light Calc: Lighting Calculator for Lighting Designers" developer_entity: "BBGG LLC" bundle_id: "com.alminty.iDeer" app_store_id: "763837564" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2014-09-25" report_date: "2026-08-05" last_verified: "2026-08-05T00:00:00.000Z" report_version: "1.1" total_reviews: 2 overall_rating: 1 sentiment: "Frustrated" sentiment_score: 30 confidence: "low" confidence_score: 0.3 top_praise_theme: "The save button located above the keyboard provides a clear finalization step for user inputs" top_complaint_theme: "The app fails to provide output data for footcandle measurements despite trying multiple design types" review_sample_size: 2 total_review_count: 2 analyzed_review_count: 2 data_age_days: 18 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "professional", "lighting", "designers,"] canonical_url: "https://marlvel.ai/apps/light-calc-lighting-calculator-for-lighting-design" license: "CC-BY-NC 4.0" content_version: "v2" --- # Light Calc: Lighting Calculator for Lighting Designers Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 1 · Sentiment Frustrated - **Recent focus**: The app fails to provide output data for footcandle measurements despite trying multiple design types (top complaint) · The save button located above the keyboard provides a clear finalization step for user inputs (top praise) > **TL;DR:** Light Calc: Lighting Calculator for Lighting Designers is a utilities app by BBGG LLC, rated 1/5 by 2 users, with Frustrated user sentiment (30/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Light Calc: Lighting Calculator for Lighting Designers faces Frustrated user sentiment (1/5 from 2 reviews), with users reporting the app fails to provide output data for footcandle measurements despite trying multiple design types as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 1/5 (2 reviews) | | **User Mood** | Frustrated | | **Category** | Utilities | | **Developer** | BBGG LLC | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 18d | ## Metadata & Market Performance - **Publisher:** BBGG LLC - **Category:** Utilities - **Target Audience:** Professional lighting designers, architects, interior designers, and engineers requiring quick field calculations. - **Platforms:** iOS - **Version Reviewed:** 1.1 - **Report Date:** 2026-08-05 - **Signal Count:** 2 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 763837564 - **Bundle ID:** com.alminty.iDeer - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-05 ## Executive Snapshot **What it is:** Light Calc is a utility for lighting designers and engineers to calculate illuminance and light power density on iOS. **Why users hire it:** The tool removes the friction of manual field calculations by providing a dedicated interface for rapid data entry and export. ## App DNA (Features & Intent) - **[Standard] Illuminance and LPD Calculation:** Calculates illuminance levels and light power density based on input parameters. - **[Standard] Export to Camera Roll:** Saves calculation results as images to the device photo library. - **[Standard] Email Export:** Sends calculation data via email for external documentation. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. ## Market Position {#market-position} Light Calc operates as a specialized utility with no recent updates since 2014. The lack of functional measurement output in the current version significantly undermines its position as a professional tool. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** Light Calc is distributed as a free utility with no visible in-app purchases or subscription tiers. ## 🔴 User Sentiment (Low Confidence: 2 of 2 reviews analyzed) {#user-sentiment} - **Overall Rating:** 1/5 - **Platform Split:** iOS 1.0/5 (2 ratings) - **Overall Sentiment:** Frustrated ### Top Praises - **The save button located above the keyboard provides a clear finalization step for user inputs** ### Top Complaints (Impact Areas) - **The app fails to provide output data for footcandle measurements despite trying multiple design types** ## SWOT Analysis {#swot} **Core Strengths:** - Clear save button location above the keyboard **Growth Levers:** - Update calculation engine to restore professional utility ## Recent Changes (v2 → v3) {#recent-changes} The app's functional state remains unchanged, with no updates since 2014 and persistent calculation failures. The primary shift is a change in the analytical perspective, which now positions the app's long-term dormancy as a potential benefit for users seeking to avoid modern software subscription models. **Overall trend**: Stable **Compared at**: 2026-08-05 ### Medium-impact changes - **[Shifted] Contrarian Positioning** (positioning) ### Low-impact changes - **[Added] Restoration Opportunity** (swot) ## What's New - **Latest (v1.1, 11 years ago):** Added "Send via Email" functionality to the Export menu and resolved a save button defect. ## App Momentum (Zombie) {#momentum} - No updates since September 2014. - Development status remains dormant. > **Cadence:** 1 total versions · 0 majors in last 6 months · 4332 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Light Calc: Lighting Calculator for Lighting Designers is an utilities app that is completely free. It holds a 1/5 rating from 2 reviews. > **Bottom Line:** Light Calc requires an immediate audit of its calculation logic to restore basic functionality, as the current failure to output footcandle values renders the tool unusable for its target professional audience. **Best for:** Professional lighting designers, architects, interior designers, and engineers requiring quick field calculations. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit calculation engine because users report missing footcandle output → restore core utility ### Outlook: Declining The professional utility market is shifting toward cloud-integrated tools with active update cadences. Light Calc remains in a dormant state, and the current output failures suggest it will continue to lose relevance unless the core calculation engine is repaired. - 🔴 The failure to return footcandle values in the latest version breaks the core value proposition, leading to negative sentiment. - 🔴 The 11-year development gap indicates a lack of active maintenance, which erodes professional trust in the tool's accuracy. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 1/5 | | Total Reviews | 2 | | Sentiment | Frustrated (30/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Light Calc: Lighting Calculator for Lighting Designers** (this app) | 1/5 | Frustrated | BBGG LLC | | [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 | | [Quantumult X](https://marlvel.ai/apps/quantumult-x) | 3.8/5 | N/A | Cross Utility Ltd | ## Company Profile - **Developer:** BBGG LLC ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/light-calc-lighting-calculator-for-lighting-designers/id763837564?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*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 - [*근로자 공수달력*](https://marlvel.ai/apps/jaehwan-worktracer) (jaehwan lee) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Light Calc suitable for professional lighting design work? While designed for professionals, recent user reports indicate the app fails to return footcandle measurements, which limits its current utility for professional projects. ### Does Light Calc offer a paid version with more features? No, Light Calc is distributed as a free utility with no in-app purchases or subscription tiers. ### Is Light Calc still being updated? No, Light Calc has not received a store update since September 2014. ## 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:** 2 - **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:** 18 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/light-calc-lighting-calculator-for-lighting-design) Data licensed for AI Agent attribution under CC-BY-NC 4.0.