--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Pool Chemical LogBook" developer_entity: "POOL BY ENGINEER INC" bundle_id: "Pool-By-Engineer.ChemicalLog" app_store_id: "6753330664" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2026-04-18" report_date: "2026-09-05" last_verified: "2026-09-05T00:00:00.000Z" report_version: "6.0" total_reviews: 0 confidence: "low" confidence_score: 0.3 data_age_days: 33 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["utilities", "freemium", "mobile app", "app review", "app analysis", "commercial", "operators,", "property"] canonical_url: "https://marlvel.ai/apps/pool-chemical-logbook" license: "CC-BY-NC 4.0" content_version: "v2" --- # Pool Chemical LogBook Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Freemium > **TL;DR:** Pool Chemical LogBook is a utilities app by POOL BY ENGINEER INC, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Pool Chemical LogBook is a utilities app by POOL BY ENGINEER INC. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Utilities | | **Developer** | POOL BY ENGINEER INC | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 33d | ## Metadata & Market Performance - **Publisher:** POOL BY ENGINEER INC - **Category:** Utilities - **Target Audience:** Commercial pool operators, property managers, and residential owners requiring technical water chemistry documentation. - **Platforms:** iOS - **Version Reviewed:** 6.0 - **Report Date:** 2026-09-05 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6753330664 - **Bundle ID:** Pool-By-Engineer.ChemicalLog - **Performance Trend:** Improving - **Data Window:** Analysis based on signals collected up to 2026-09-05 ## Executive Snapshot **What it is:** Pool Chemical LogBook is a chemistry logging and dosing calculator for commercial and residential pool operators on iOS. **Why users hire it:** The app removes the manual effort of calculating chemical dosages and organizing paper logs for health department audits. ## App DNA (Features & Intent) - **[Differentiator] Inspector-ready PDF Export:** Generates professional monthly summaries for health audits and management reports. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Chemical Dosing Calculator:** Computes exact product-based doses with side-effect warnings for specific chemicals. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Offline-first Logging:** Enables data entry and editing without internet connectivity, syncing automatically when back online. * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} Pool Chemical LogBook operates in the Utilities category with a specialized focus on facility compliance. The lack of a public rating count suggests the app is currently in an early-adoption phase, requiring increased visibility to compete with legacy paper-based logging methods. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free: Quick logging, LSI gauge, targets, multiple pools/spas., Pro: Advanced chemical calculator, corrections, and PDF exports. - **Analysis:** The freemium model gates professional compliance and advanced chemical math behind a subscription to monetize commercial facility operators. ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture ensures data availability in connectivity-constrained equipment rooms. - Product-aware dosing math reduces chemical waste and potential over-correction side effects. **Growth Levers:** - Integration with automated pool-sensor hardware would remove manual entry friction. - Localized chemical product databases could increase utility in international markets. ## Recent Changes (v2 → v3) {#recent-changes} Pool Chemical LogBook pivoted its commercial-only focus to include residential users by proposing a hybrid billing model. This shift addresses the high friction of subscription-only compliance reporting. **Overall trend**: Improving **Compared at**: 2026-09-05 ### High-impact changes - **[Shifted] Hybrid Billing Roadmap** (pricing) - **[Shifted] Residential Market Inclusion** (audience) ### Medium-impact changes - **[Added] Competitive and Regulatory Threats** (swot) - **[Shifted] Sensor-Syncing Competitive Risk** (positioning) ## What's New - **Latest (v6.0, 4 months ago):** Introduced a new workflow for acquiring member seats. ## App Momentum (Maintenance) {#momentum} - Released version 6.0 in April 2026. - Ships updates at ~20-week cadence. > **Cadence:** 1 total versions · 1 majors in last 6 months · 139 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Pool Chemical LogBook is an utilities app that is free with in-app purchases. > **Bottom Line:** Pool Chemical LogBook provides a clear utility for facility compliance, but the subscription-only gate for reports limits its reach among residential users. Pivoting to a hybrid billing model would unlock the residential segment while maintaining the commercial revenue stream. **Best for:** Commercial pool operators, property managers, and residential owners requiring technical water chemistry documentation. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Introduce a one-time purchase option for PDF exports because residential users resist recurring subscriptions → increase conversion among home owners. ### Outlook: Stable The market for digital facility management is shifting toward automated compliance, and Pool Chemical LogBook is well-positioned to serve this need. The current maintenance-mode cadence leaves the app exposed to faster-moving competitors who may integrate sensor-syncing capabilities before the next major release cycle. - 🟢 The offline-first architecture addresses a specific pain point for facility managers, which creates a defensible position against cloud-only competitors. - ⚪ The 20-week update cadence indicates a maintenance-focused posture, which may limit the ability to respond quickly to emerging competitor features. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Improving | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Pool Chemical LogBook** (this app) | N/A/5 | N/A | POOL BY ENGINEER INC | | [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) | 4.5/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** POOL BY ENGINEER INC - **Website:** [https://poolbyengineer.com/chemicallog](https://poolbyengineer.com/chemicallog) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/pool-chemical-logbook/id6753330664?uo=4) - **Dev Site:** [Official Website](https://poolbyengineer.com/chemicallog) - **Sources:** Developer website content, About us / company information, App store metadata. ## 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) · 4.5/5 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 - [*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 Pool Chemical LogBook suitable for residential pool owners? Yes, the app is designed for both commercial and residential use, offering simple steps and accurate dosing records for anyone managing a pool or spa. ### Does Pool Chemical LogBook require an internet connection? No, the app is offline-first. You can log and edit data anywhere, and it will automatically sync to the cloud when your device regains internet access. ### What features are included in the Pro subscription? The Pro subscription unlocks the advanced chemical calculator, pH-TA coupled guidance, and the ability to export inspector-ready monthly PDF logbooks. ## 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:** 0 - **Data Sources:** developer website, company about page, 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:** 33 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/pool-chemical-logbook) Data licensed for AI Agent attribution under CC-BY-NC 4.0.