Tran Duy
For students, engineering professionals, and mathematics enthusiasts who require high-precision calculation and graphing capabilities.
NCalc Scientific Calculator +Snapshot
Who is Tran Duy?
Providing students and engineers with high-precision, hardware-equivalent mathematical tools for complex computation.
Target audience
Portfolio
Free 2Last updated
NCalc Scientific Calculator +
v3.5.6
8mo ago
Publisher DNA
What defines Tran Duy?
Publisher DNA
Primary focus
Educational utility and scientific calculation tools
Scale
indie
Target audience
Students, engineering professionals, and mathematics enthusiasts who require high-precision calculation and graphing capabilities.
Signature Patterns
- •Replication of physical calculator interfaces and keyboard layouts
- •Focus on high-precision mathematical and graphing engines
- •Monetization via free-to-use model
- •Targeting academic and engineering workflows
Portfolio momentum
Released 7 updates across 2 apps in the last 6 months, indicating consistent maintenance and feature refinement.
Portfolio
What does Tran Duy ship?
Apps
2 apps analysed
One-time purchase model provides clear value
- The graphing calculator functionality provides a reliable and cost-effective alternative to expensive physical hardware for students
- The introduction of intrusive loading screens and full-screen advertisements disrupts the utility of the calculator
Distributed across 20 markets, strongest in Europe.
Based on 1 of 2 apps with localized market data, more coverage rolling in as scans complete · last scanned .
Americas (4)
- Brazil1 / 1
- Canada1 / 1
- Mexico1 / 1
- United States1 / 1
Europe (9)
- France1 / 1
- Germany1 / 1
- Italy1 / 1
- Netherlands1 / 1
- Portugal1 / 1
›+4 more europe markets
- Spain1 / 1
- Sweden1 / 1
- Turkey1 / 1
- United Kingdom1 / 1
Asia-Pacific (7)
- Australia1 / 1
- India1 / 1
- Indonesia1 / 1
- Japan1 / 1
- Singapore1 / 1
›+2 more asia-pacific markets
- South Korea1 / 1
- Vietnam1 / 1
Core markets (1/1 apps)
User Sentiment
How do users feel about their apps?
1
Positive apps
0
Neutral / mixed
0
Negative apps
75/100
Avg sentiment score
Rivals
Who does Tran Duy compete with?
The rivals identified
Nemeses(2)
Both apps target students and professionals with overlapping scientific and graphing toolsets, forcing a direct choice between NCalc's high-precision focus and the rival's multi-purpose utility.
This app competes directly for the student demographic by offering specialized, single-purpose math solving tools that frequently appear in the same search queries as general graphing calculators.
Contenders(11)
Users report: Both apps target students and professionals requiring mathematical tools, with Calculator Air capturing a larger audience through AI-driven photo recognition and tutoring features.
Both apps target students and engineering professionals with free graphing and calculation tools, creating direct competition for academic and professional utility.
Both apps target the student demographic with free graphing and scientific calculation tools, creating direct competition for the same academic user base.
Both applications target students and engineering professionals by offering free, Casio-inspired scientific calculator interfaces, leading to direct competition for the same user base.
This app targets the foundational math education market, competing for the attention of students who require step-by-step guidance rather than just raw calculation.
Both apps target students and professionals requiring math utilities, with NCalc offering a free, high-precision alternative to Calculator₊'s increasingly ad-heavy, subscription-gated experience.
This app offers a specialized unit conversion interface that functions alongside NCalc for users requiring frequent currency and mixed-unit calculations.
Both apps target students and engineers with high-precision scientific calculation tools, competing directly for the same user base on mobile platforms.
Both apps target students and engineers with scientific calculation tools, competing directly for the same user base through overlapping functionality in formula management and mathematical precision.
Both apps target STEM students and professionals with free, high-precision graphing and calculation tools, creating direct competition for academic utility.
This app competes by offering a broader library of geometric shapes and parameters, appealing to users who need a dedicated geometry reference tool.
Same space(13)
This app competes for the same technical user base as NCalc by providing a distraction-free, ad-free environment for engineering-grade conversions.
This app serves the same student and professional audience as NCalc by providing specialized conversion tools that complement NCalc's core calculation functionality.
This app serves as a reference library that complements NCalc's calculation engine by providing fundamental physics constants.
This app serves a specific niche within the education category, competing for users who need specialized conversion tools for their math studies.
This app provides a formula management tool that extends the utility of NCalc for users who need to save and modify complex equations.
This app targets the same professional and student demographic as NCalc by offering specialized chemistry and physics-related conversion units.
This app provides an AI-based alternative to NCalc's manual entry for students who need to solve handwritten or printed math problems.
This app acts as a supplemental homework assistant for NCalc users by adding OCR-based problem solving to the standard calculator experience.
This app provides a paid, offline-capable alternative for users who require more extensive unit and currency coverage than NCalc's built-in tools.
It competes for the same educational market share by offering AI-driven solutions that provide a more modern alternative to traditional calculator interfaces.
While gamified, it occupies the same 'Education' category and targets the same K-12 student audience looking for math support.
It competes for the same student demographic by using math-based gameplay to teach arithmetic, positioning itself as a fun alternative to standard calculators.
This app provides an AI-driven learning path that serves as a high-level educational companion to NCalc's manual calculation tools.
New entrants(2)
It enters the market as a direct competitor to the target's utility-based offerings, focusing on geometric calculation and history tracking.
This newcomer targets the same student audience by focusing on the practical, administrative side of academic success.
The Analyst's Read
The bottom line on Tran Duy
Bottom line
This publisher maintains a focused, high-utility portfolio that successfully bridges the gap between physical classroom hardware and mobile software. Their consistent update cadence and adherence to established mathematical interface standards suggest a stable, utility-driven product strategy.
Frequently asked questions
How many apps does Tran Duy publish?
What kind of apps does Tran Duy make?
What is Tran Duy's top app?
In how many countries are Tran Duy's apps available?
What fed this analysis
- Apps analyzed:
- 2
- With full intel:
- 0
- With overview:
- 2
- Website scraped:
- yes
- Social presence:
- yes
