By Monte L Helm
Report updated May 13, 2026
DrPhos' Stoichiometry
For high school and college chemistry students requiring fast, accurate stoichiometry problem solving.
DrPhos' Stoichiometry is an established education app that is a paid app. With a 5.0/5 rating from 1 reviews, it shows polarized user reception.
What is DrPhos' Stoichiometry?
DrPhos' Stoichiometry is a chemistry utility app for high school and college students, providing automated reaction calculations on iOS.
Students hire this tool to solve stoichiometry problems quickly, avoiding the manual calculation errors and complexity of general-purpose chemistry calculators.
Current Momentum
v3.0 · 9mo ago
Zombie- Last major update July 2025.
- Maintains specialized stoichiometry focus.
What makes this app unique?
What Does It Look Like?
How Is The App's Momentum Right Now?
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What Are The Key Features?
Calculates moles, mass, and volume based on balanced chemical equations
Automated identification of limiting reactants within chemical reaction inputs
Cross-app functionality allowing users to unlock this tool within the broader suite
How much does it cost?
- Single purchase at $0.99
Paid model at $0.99 provides low-friction access to specific academic utility without recurring subscription overhead.
Who Built It?
Monte L Helm
View Publisher Intel →Enrichment in progress
Publisher profile available very soon
What other apps does Monte L Helm make?
What do users think recently?
Analysis in progress, available soon
What is the competitive landscape for DrPhos' Stoichiometry?
How's The Education Market?
Market outlook for this category
Available very soon
The rivals identified
The Nemesis
Head to Head
The target app should emphasize its specialized stoichiometry workflow and superior UX to differentiate from the broader, more cluttered utility of the nemesis.
What sets DrPhos' Stoichiometry apart
Focuses specifically on stoichiometry workflows, potentially offering a cleaner and more intuitive user interface.
Provides a specialized toolset that avoids the feature bloat found in general-purpose chemistry calculators.
What's Chemical Equation Balancer App's Edge
Features a broader utility set including a periodic table and molar mass calculator for diverse tasks.
Established user base and rating history provide higher credibility for new students searching the store.
Peers
Uses gamified environmental levels to increase student engagement compared to traditional problem-solving tools.
Includes a certification system that provides tangible rewards for completing educational milestones within the app.
Enables remote monitoring and classroom projection, which is essential for collaborative laboratory data analysis.
Provides direct integration with hardware, creating a specialized workflow for students performing physical experiments.
Utilizes 3D heart models to provide an immersive visual learning experience for anatomy students.
Incorporates looped video content to explain complex physiological processes that static text cannot convey.
120,000 Medical Dictionary
★3.0 (2)Sand Apps Inc.
This app serves the same academic student demographic by providing a massive reference database for specialized scientific terminology.
Offers a massive, searchable database of medical terminology that acts as a primary reference tool.
Includes social sharing and export features, allowing students to easily collaborate and study together.
New Kids on the Block
Integrates 3D Bohr atom models to provide a modern, visual approach to teaching atomic structure.
The outtake for DrPhos' Stoichiometry
Strengths to defend, gaps to attack
Core Strengths
- Specialized stoichiometry workflow reduces cognitive load
- GenChem Helper integration creates cross-app value
- Paid-tier model removes recurring subscription friction
Critical Frictions
- Zero user feedback limits social proof
- Narrow feature set compared to all-in-one utilities
- Single purchase model lacks recurring revenue
Growth Levers
- Education partnerships offer untapped B2B distribution
- Wearable integration could provide unique reference utility
Market Threats
- All-in-one chemistry apps bundle stoichiometry features
- Newcomers utilize 3D visualization to capture interest
- Lack of social proof hinders discovery
What are the next best moves?
Incentivize user reviews because the nemesis has seventeen ratings while this app has zero → increase discovery velocity
The nemesis maintains a higher volume of user feedback and social proof, which is a critical barrier for new students.
Trade-off: Pause the GenChem Helper integration update — social proof is a higher priority for store visibility.
Audit feature parity against all-in-one chemistry apps because they bundle periodic tables → reduce churn to broader suites
The nemesis includes a periodic table, providing a more comprehensive experience that threatens this app's niche utility.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The app's narrow focus is its primary risk, yet it is also its only defense against feature-bloated competitors that confuse students with excessive, non-stoichiometry-related tools.
Feature Gaps vs Competitors
- Periodic table (available in Chemical Equation Balancer App but absent here)
- Step-by-step solutions (available in Chemical Equation Balancer App but absent here)
Key Takeaways
DrPhos' Stoichiometry holds its niche through a clean, specialized workflow but remains vulnerable to feature-rich all-in-one chemistry suites, so the PM should prioritize social proof acquisition to compete with established rivals.
Where Is It Heading?
Mixed Signals
The chemistry utility market is consolidating around all-in-one reference suites that bundle multiple tools into a single interface. DrPhos' Stoichiometry remains exposed because its narrow feature set lacks the comprehensive utility students now expect, so the PM must either expand the toolset or double down on its specialized workflow to prevent churn.
Lack of social proof compared to the nemesis (zero ratings vs seventeen) limits organic discovery among new chemistry students.
The latest release focuses on maintenance, leaving the app exposed to competitors that integrate modern 3D visualization features.