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?
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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
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for DrPhos' Stoichiometry?
Where is it available?
Localized markets (1)
How's The Education Market?
How does it evolve in the Education market?
The app occupies a specialized niche in the Education category, priced at $0.99. It faces high competition from broader chemistry utilities that maintain higher rating counts.
Rank progression
1 active ranking tracked — 30-day window
Which niche is DrPhos' Stoichiometry in?
to solve chemistry stoichiometry problems
Explore the full Science Calculators niche
Every app in this space — 5 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
This app directly competes for the same chemistry student demographic by offering a comprehensive suite of stoichiometry and equation-solving tools.
Differentiators
- Includes a built-in periodic table, providing a more comprehensive all-in-one chemistry reference experience.
- Offers step-by-step solutions that guide students through complex problems rather than just providing final answers.
- Maintains a higher volume of user feedback and social proof with seventeen ratings versus zero.
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.
Contenders(1)
This app targets the same educational niche by focusing on chemical calculations and solution preparation, overlapping with our stoichiometry use cases.
Same space(4)
This app competes for the same student demographic by providing high-quality visual aids for complex scientific concepts.
Differentiators
- 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.
It serves as a foundational reference tool for the same chemistry students who use our app for stoichiometry calculations.
This app occupies the broader educational category, competing for the same user base interested in science-based mobile tools.
While the subject matter differs, it competes for the same student attention and time by utilizing gamified educational mechanics.
New entrants(2)
A new entrant in the education space that uses AI to organize content, potentially disrupting how students find and use study tools.
A direct functional competitor that has recently entered the market with a feature set nearly identical to our core offering.
Compare DrPhos' Stoichiometry against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
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.