Report updated May 26, 2026
Engineering HandBook
For engineering students and professionals requiring quick access to reference data and calculation tools while on site.
Engineering HandBook is an established education app that is completely free. With a 4.0/5 rating from 4 reviews, it shows polarized user reception.
What is Engineering HandBook?
Engineering HandBook is a mobile reference tool for engineering formulas, material properties, and unit conversions on iOS.
Users hire this app for quick, offline access to technical data while on worksites, reducing the friction of manual lookup.
Current Momentum
v1.0 · 147mo ago
Zombie- No updates since 2014 release.
What makes this app unique?
What Does It Look Like?
Loading...
What Are The Key Features?
Access to formulas for mechanics, gear drives, and metal cutting operations.
Calculators for inch to millimeter conversion and physical quantity units.
Reference database for ferrous metals, non-ferrous metals, and plastics properties.
Calculation of equal and unequal angles based on specific Indian Standards.
How much does it cost?
- Free
The app is distributed as a free utility with no visible monetization.
Who Built It?
Raghu Srinivas
View Publisher Intel →Enrichment in progress
Publisher profile available very soon
What other apps does Raghu Srinivas 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 Engineering HandBook?
Where is it available?
Localized markets (1)
How's The Education Market?
Market outlook for this category
Available very soon
Which niche is Engineering HandBook in?
to calculate engineering formulas and unit conversions
Explore the full Math Calculators niche
Every app in this space — 28 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
Desmos dominates the education landscape by providing a high-performance, interactive math engine that serves as the gold standard for students and engineers alike.
Differentiators
- Advanced interactive sliders allow users to visualize dynamic changes in mathematical functions in real-time.
- Comprehensive accessibility suite ensures compliance and usability for students with visual or motor impairments.
- Massive user base and brand recognition create a powerful network effect within academic institutions.
Head to head
The target app should pivot toward professional engineering workflows to avoid direct feature competition with Desmos's academic dominance.
Contenders(4)
This app competes for the same student demographic by offering specialized, step-by-step solutions for specific arithmetic pain points.
Differentiators
- Provides granular step-by-step solutions that help students understand the logic behind complex fraction arithmetic.
- Integrates curated learning videos to provide contextual support beyond simple numerical calculation outputs.
It targets users needing quick, reliable arithmetic tools, overlapping with the basic calculation features of the Engineering HandBook.
Differentiators
- Includes a paper tape history feature allowing users to audit and review previous calculation steps.
- Supports flexible output formats that cater to specific engineering or academic notation requirements.
This app directly challenges the Engineering HandBook's utility in geometry and physical measurement calculations.
Differentiators
- Dedicated 3D shape calculator provides specialized volume metrics that the target app lacks in depth.
- Includes a built-in Pythagorean calculator for rapid field measurements, streamlining common construction and engineering tasks.
Casio leverages its hardware reputation to bridge physical classroom tools with digital mobile interfaces, competing for the same technical audience.
Differentiators
- QR connectivity allows seamless data transfer between physical Casio hardware and the mobile application interface.
- Scientific calculation engine provides professional-grade accuracy that mirrors standard industry-approved physical scientific calculators.
Same space(3)
Shares the education category by focusing on mental math and arithmetic proficiency through gamified mechanics.
Differentiators
- Uses competitive leaderboards to drive user engagement through timed mental math challenges and social pressure.
- Features a dedicated 'Hard Mode' that specifically targets advanced users looking to improve calculation speed.
Focuses on early-stage math education, competing for the attention of users seeking structured learning paths.
Differentiators
- Employs strategy-based learning paths that move beyond rote memorization to build deeper mathematical intuition.
- Privacy-focused design architecture appeals to parents and educators concerned about student data collection.
Targets the same educational space by providing visual aids for core multiplication and division concepts.
Differentiators
- Utilizes unique visual representations to help users grasp the conceptual mechanics of multiplication and division.
- Supports multi-user account management, making it highly effective for classroom or family-shared device environments.
Compare Engineering HandBook 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 Engineering HandBook
Strengths to defend, gaps to attack
Core Strengths
- Indian Standards calculation logic provides a niche B2B distribution barrier into regional engineering workflows.
Critical Frictions
- Zero updates since 2014 creates a perception of abandonment.
- 4-review total count indicates negligible market penetration.
Growth Levers
- Integration of modern, interactive calculation engines could pivot the app from a static reference to an active engineering tool.
Market Threats
- High-frequency update cadences from competitors like Desmos and ClassWiz render static reference apps obsolete for power users.
What are the next best moves?
Pivot to a modern UI framework because the 2014-era interface lacks the fluidity required for professional worksite use → increase retention.
The app has not been updated since 2014, making it functionally and visually obsolete compared to current competitors.
Trade-off: Deprioritize new content additions until the core interface is brought to modern standards.
A counter-intuitive read
The app's greatest weakness—its lack of updates—is actually its primary moat, as the static Indian Standards data remains valid even if the UI is dated.
Feature Gaps vs Competitors
- Interactive graphing (available in Desmos)
- QR hardware connectivity (available in ClassWiz)
- 3D volume metrics (available in Area and Volume Calculator)
Key Takeaways
The app provides niche value through Indian Standards calculations but suffers from a decade of neglect, so the PM should pivot to a modern interface or sunset the product to avoid brand dilution.
Where Is It Heading?
Declining
The engineering reference market is consolidating around interactive, high-frequency update models that provide more than just static data. Without a major technical refresh, this app will continue to lose relevance to competitors that integrate with modern engineering workflows.
The lack of updates since 2014 prevents the app from surfacing in store algorithms, leading to stagnant discovery and user acquisition.