Best Qoreng Apps &amp; Games

Optional RPN modeMultiple undo and redoUnit conversions and constants

This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.

(214)

Optional RPN modeMulti-line displayExtensive unit conversions

PCalc

The Best Calculator

$9.99

A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.

(770)

Basic « Scientific » Advanced

CALC Smart Calculator ±

Real-time resultsUnit and currency conversionsCustom functions and constants

$5.99 | 100% OFF

This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.

(2.4K)

Bell & Gossett - SystemSyzer

by Xylem Inc.

Friction loss and velocity calculatorHeat/cooling load calculationCv tool

This HVAC tool aids in piping system design, offering calculators for friction loss, velocity, and heat load. It includes a Cv tool and a specialized calculator for balancing contractors to determine valve settings and flow rates.

🔍 Reference

(7)

free

Calculator-Math Toolbox

Scientific,Currency,Fractions

Basic and scientific calculationsTrigonometric and inverse trigonometric functionsMathematical functions (abs, ceil, floor, round)

This app offers both basic and advanced scientific calculations with a user-friendly interface. It allows for real-time editing of calculations, history management, and theme customization.

(342)

12 specialized calculatorsOver 800 formulasScientific, RPN, and String modes

▸ Calculator +

Scientific Calculator

$1.99

This app offers a comprehensive suite of 12 calculators, including scientific, currency, unit, and finance functions. It features advanced modes, extensive formula support, and a user-friendly interface for all calculation needs.

(899)

Linpack

by Alexey Solovyov

Measures floating-point computing powerSolves dense linear equationsReports MFLOP/s

This utility measures a system's floating-point computing power by solving dense linear equations. It reports results in millions of floating-point operations per second (MFLOP/s) and includes checks for solution accuracy and machine precision.

Engineering Unit Converter

(5)

free

by Vector 254 LLC

Unit conversionCurrency conversionBuilt-in calculator

This app offers a powerful and user-friendly way to convert units and currencies. It includes a built-in calculator, mass/mole fraction converter, thermocouple module, and physical constants database. Customize your display and input mathematical expressions for complex conversions.

🔍 Reference

(85)

Figure calculator ShapeInfo

Geometric shape calculator

Calculate lengths, angles, and areaSupports 2D shapes (triangle, circle, ellipse)Supports 3D shapes (pyramid, prism, cone, cylinder, sphere)

Easily calculate lengths, angles, and areas of various geometric shapes. Input known values and instantly get precise results for a wide range of 2D and 3D figures. Ideal for students and engineers needing quick geometric computations.

Official emulator of HP 15c

$14.99

Experience the official emulator of the legendary HP 15c scientific calculator. This app offers a redesigned interface and modern look while preserving the precision and reliability of the original. It features RPN input, matrix calculations, complex functions, and numerical integration for professionals and students.

Official HP 15c emulatorRPN (Reverse Polish Notation)Matrix calculations

Symbolic graphing calculator

$4.99

This advanced scientific calculator offers hundreds of mathematical functions for various subjects, from basic math to linear algebra. It excels at graphing complex equations and plotting numerical data with speed and accuracy. An indispensable tool for students, teachers, and engineers, it provides a modern and intuitive interface.

Hundreds of mathematical functionsSymbolic graphing calculatorGraphing of various plot types

📚 Education

(110)

paid

Construction Calculator .

Feet Inch Calculator

Specialized calculators for concrete, lumber, drywall, and roofingAdvanced stair and framing calculatorsInstant unit conversions

This app provides essential tools for contractors, builders, and DIYers to perform fast, accurate construction calculations on the job site. It streamlines planning, estimating, and material measurement for various building tasks, reducing errors and saving costs.

Learn to identify correct internal force diagrams in structures through a gamified experience. Test your knowledge of static loads and internal forces to score points and advance. This app is designed for students and aspiring engineers to playfully reinforce their understanding of structural analysis.

Identify correct internal force diagramsGamified learning experienceScore points for speed

No ads & Scientific calculator

No adsSimple and scientific calculationView calculation steps

A powerful and user-friendly calculator designed for tablets, offering both simple and scientific functions without advertisements. View calculation steps and enjoy a clean interface optimized for high resolution.

(315)

freemium

Statistics Calculator--

by Dogahe

List data entry and managementBasic statistical measures (mean, std dev, etc.)Linear, logarithmic, exponential, power regression

This app provides essential statistical calculations and regression analysis with an intuitive interface. Easily input data, view statistical measures, and perform various regression models. Advanced features are unlocked via in-app purchases.

(316)

Intended for use with TI-84

Calculate84 Plus

Natural textbook equation inputPlot multiple functions with touch controlsAdvanced math, number, and probability functions

This app provides advanced scientific and graphing calculator functionality. It allows users to plot multiple functions, perform complex mathematical operations, analyze data with statistics, and manage matrices. An optional subscription unlocks even more features.

📚 Education

(305)

FE Other Engineering Exam Prep

NCEES EIT Fundamentals Review

780+ practice flashcardsDetailed explanationsExpert-developed content

Prepare for the NCEES FE Other Disciplines Engineering exam with over 780 comprehensive flashcards. Test your knowledge of essential principles, equations, and formulas. A limited free version is available, with premium access offering detailed explanations and all categories.

📚 Education

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