--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "DrPhos' Stoichiometry" developer_entity: "Monte L Helm" bundle_id: "drphos.Stoichiometry" app_store_id: "6475633178" category: "Education" primary_platform: "ios" primary_monetization: "Paid" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-07-31" report_date: "2026-07-22" last_verified: "2026-07-22T00:00:00.000Z" report_version: "3.0" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 25 momentum_velocity: "zombie" intelligence_version: 4 nemesis: "Chemical Equation Balancer App" competitor_count: 8 tags: ["education", "paid", "mobile app", "app review", "app analysis", "school", "college", "chemistry"] canonical_url: "https://marlvel.ai/apps/drphos-stoichiometry" license: "CC-BY-NC 4.0" content_version: "v2" --- # DrPhos' Stoichiometry Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Paid - **Signal**: Rating 5 > **TL;DR:** DrPhos' Stoichiometry is a education app by Monte L Helm, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** DrPhos' Stoichiometry is a education app by Monte L Helm. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Education | | **Developer** | Monte L Helm | | **Pricing** | Paid | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 25d | ## Metadata & Market Performance - **Publisher:** Monte L Helm - **Category:** Education - **Target Audience:** High school and college chemistry students requiring fast, accurate stoichiometry problem solving. - **Platforms:** iOS - **Version Reviewed:** 3.0 - **Report Date:** 2026-07-22 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6475633178 - **Bundle ID:** drphos.Stoichiometry - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-07-22 ## Executive Snapshot **What it is:** DrPhos' Stoichiometry is a specialized chemistry calculator for high school and college students, available as a paid utility on iOS. **Why users hire it:** Students hire this tool to solve stoichiometry problems quickly, but the lack of integrated reference materials forces them to switch to broader study apps, limiting the app's retention. ## App DNA (Features & Intent) - **[Standard] Stoichiometry Calculator:** Calculates moles, mass, and volume based on balanced chemical equations. - **[Differentiator] Limiting Reactant Detection:** Automated identification of limiting reactants within chemical reaction inputs. - **[Differentiator] GenChem Helper Integration:** Cross-app functionality allowing users to unlock this tool within the broader suite. ## Market Position {#market-position} DrPhos' Stoichiometry currently holds the #38 Paid position in its category. Its $0.99 price point creates a low-friction entry, but the lack of a periodic table limits its competitive standing against free, comprehensive study apps. ## Monetization Strategy - **Model:** Paid - **Tiers:** Single purchase at $0.99 - **Price:** iOS: $0.99 - **Analysis:** Paid model at $0.99 provides low-friction access to specific academic utility without recurring subscription overhead. ## SWOT Analysis {#swot} **Core Strengths:** - Specialized stoichiometry logic reduces cognitive load for specific problem-solving tasks. **Growth Levers:** - Integration of a periodic table would increase daily utility and retention. ## Recent Changes (v3 → v4) {#recent-changes} The analysis shifted from viewing the app's paid model as a niche advantage to a competitive liability, while refining the competitive landscape to emphasize the need for reference features. **Overall trend**: Mixed **Compared at**: 2026-07-22 ### High-impact changes - **[Shifted] Pricing Strategy Perception** (pricing) ### Medium-impact changes - **[] SWOT Analysis Refinement** (swot) - **[] Market Position Data** (positioning) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### DrPhos' Stoichiometry vs Chemical Equation Balancer App - **[Chemical Equation Balancer App](https://marlvel.ai/apps/chemical-equation-balancer-app)** by talha rehman: This app directly competes for the same chemistry student demographic by offering a comprehensive suite of stoichiometry and equation-solving tools. - **Key differences:** - Offers a built-in periodic table, providing a more comprehensive reference hub than our focused stoichiometry tool. - Features a higher volume of user reviews, establishing greater social proof and trust within the App Store. - Provides step-by-step solutions, which serves as a critical educational aid for students struggling with complex reactions. ### Contenders (Strong Challengers) - **[Chemical Solution Simple](https://marlvel.ai/apps/chemical-solution-simple)** by Roman Volinsky: This app targets the same educational niche by focusing on chemical calculations and solution preparation, overlapping with our stoichiometry use cases. - Includes multi-unit concentration support, which addresses a specific pain point for lab-based chemistry students. - Focuses on solution preparation workflows rather than just reaction balancing, capturing a slightly different segment of chemistry learners. ### Peers (What They Do Better) - **[HeartVision](https://marlvel.ai/apps/heartvision)** by Usama Nasir: This app competes for the same student demographic by providing high-quality visual aids for complex scientific concepts. - Utilizes 3D models and looped videos to explain biological concepts, setting a high bar for visual educational content. - Offers a comprehensive library of medical visuals that provides more long-term value than a single-purpose calculator. - **[Periodic Table 2025: Chemistry](https://marlvel.ai/apps/periodic-table-2025-chemistry)** by Darian Orn: It serves as a foundational reference tool for the same chemistry students who use our app for stoichiometry calculations. - Provides offline access to a full periodic table, ensuring utility in classroom environments without internet connectivity. - Offers a dedicated study mode that complements our calculation tool, potentially serving as a companion app. - **[Planet Patrol](https://marlvel.ai/apps/planet-patrol)** by Plastic Patrol CIC: This app occupies the broader educational category, competing for the same user base interested in science-based mobile tools. - Leverages community data collection to build a network effect that our standalone tool currently lacks. - Focuses on real-world impact tracking, which provides a different motivational hook than our academic problem-solving focus. - **[GeoForge Academy](https://marlvel.ai/apps/com-galanisgalactus-geoforgeacademy)** by ZACHARY MASON KELLER: While the subject matter differs, it competes for the same student attention and time by utilizing gamified educational mechanics. - Utilizes interactive mini-games to drive engagement, a stark contrast to our utility-focused stoichiometry calculator. - Implements robust progress tracking features that encourage long-term retention compared to our single-task utility model. ### New Kids on the Block (What's Innovative) - **[Sourcify](https://marlvel.ai/apps/sourcify)** by Edomiyas Temesgen: A new entrant in the education space that uses AI to organize content, potentially disrupting how students find and use study tools. - Integrates AI-powered subject discovery to help students find relevant study materials faster than traditional search methods. - **[ChemCalc - Mole Calculator](https://marlvel.ai/apps/chemcalc-mole-calculator)** by Paul Leadbeater: A direct functional competitor that has recently entered the market with a feature set nearly identical to our core offering. - Introduces interactive formula triangles, a unique pedagogical tool that simplifies mole calculations for visual learners. ## What's New - **Latest (v3.0, 9 months ago):** Initial launch of Stoichiometry Tool featuring mole/mass/volume conversions and limiting reactant detection with an improved compound selection UI. ## App Momentum (Zombie) {#momentum} - Maintains niche paid-category presence. - Last major update July 2025. > **Cadence:** 1 total versions · 1 majors in last 6 months · 285 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} DrPhos' Stoichiometry is an established education app that is a paid app. With a 5/5 rating from 1 review, it shows polarized user reception. > **Bottom Line:** DrPhos' Stoichiometry delivers a clean, task-specific utility for chemistry students, but its single-purchase model struggles against free, feature-rich competitors, so the PM should prioritize bundling a periodic table or study guide to increase the perceived value of the $0.99 entry fee. **Best for:** High school and college chemistry students requiring fast, accurate stoichiometry problem solving. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship a built-in periodic table because it is the top-requested utility in the category → increase daily usage frequency. ### Feature Gaps vs Competitors - Periodic table reference (available in Chemical Equation Balancer App but absent here) ### Outlook: Stable The educational utility market is consolidating around comprehensive study hubs that bundle calculators with reference materials. DrPhos' Stoichiometry remains stable as a niche tool, but it will likely lose share to free, feature-rich competitors unless it expands its utility beyond stoichiometry calculations. - ⚪ The app maintains a steady niche position in the paid education category, but lacks the feature velocity to challenge broader study suites. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Paid | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **DrPhos' Stoichiometry** (this app) | 5/5 | N/A | Monte L Helm | | [GeoForge Academy](https://marlvel.ai/apps/com-galanisgalactus-geoforgeacademy) | 5.0/5 | N/A | ZACHARY MASON KELLER | | [HeartVision](https://marlvel.ai/apps/heartvision) | 5.0/5 | N/A | Usama Nasir | | [Chemical Equation Balancer App](https://marlvel.ai/apps/chemical-equation-balancer-app) | 4.6/5 | Thrilled | talha rehman | | [ChemCalc - Mole Calculator](https://marlvel.ai/apps/chemcalc-mole-calculator) | N/A/5 | Thrilled | Paul Leadbeater | | [Periodic Table 2025: Chemistry](https://marlvel.ai/apps/periodic-table-2025-chemistry) | 5.0/5 | Thrilled | Darian Orn | ## Company Profile - **Developer:** Monte L Helm ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/drphos-stoichiometry/id6475633178?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*GeoForge Academy*](https://marlvel.ai/apps/com-galanisgalactus-geoforgeacademy) (ZACHARY MASON KELLER) · 5.0/5 Rating - [*HeartVision*](https://marlvel.ai/apps/heartvision) (Usama Nasir) · 5.0/5 Rating - [*Chemical Equation Balancer App*](https://marlvel.ai/apps/chemical-equation-balancer-app) (talha rehman) · 4.6/5 Rating | Excellent Sentiment - [*ChemCalc - Mole Calculator*](https://marlvel.ai/apps/chemcalc-mole-calculator) (Paul Leadbeater) · N/A Rating | Excellent Sentiment - [*Periodic Table 2025: Chemistry*](https://marlvel.ai/apps/periodic-table-2025-chemistry) (Darian Orn) · 5.0/5 Rating | Excellent Sentiment - [*Sourcify*](https://marlvel.ai/apps/sourcify) (Edomiyas Temesgen) · N/A Rating - [*Planet Patrol*](https://marlvel.ai/apps/planet-patrol) (Plastic Patrol CIC) · 5.0/5 Rating - [*Chemical Solution Simple*](https://marlvel.ai/apps/chemical-solution-simple) (Roman Volinsky) · 5.0/5 Rating | Excellent Sentiment - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating ## 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:** 25 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/drphos-stoichiometry) Data licensed for AI Agent attribution under CC-BY-NC 4.0.