Useful (free) apps for engineers

  • July 18, 2019
  • Frank Steeghs

Engineers, like many people, love to be offered something that makes their life easier. But did you know that there are many dedicated apps for engineers? From providing a quick reference to useful equations or terms to quickly and easily converted between different units, these apps have something to offer for everyone.

Not all apps are available for all smartphones. We made a list of apps that might be useful for you. We also shared a link for these apps where you can download them and try it for yourself.
Sure there will be more apps out there that might be interesting. So feel free to tip us on useful apps for engineers! You may sent these suggestions to

Mechanical Engineering ME2GO

Apple Store

Pocket Reference which includes design, dynamics, fluid mechanics, heat and mass transfer, linear circuits, machine design, mathematics, measurement systems, statics, statistics and thermodynamics.

Geometric dimensioning and tolerancing

Apple Store | Google Play

This app describes a large range of definitions of geometric dimensioning and tolerancing and supports engineers as a multimedia reference book.

SKF Bearing Calculator

Apple Store | Google Play

With this app you can calculate rated bearing, calculate grease life, search for other information like bearing frequencies or shaft and housing fits.


Apple Store

Displays values for both the US and Metric screws including standard dimensions, tap sizes, clearance hole sizes, material strength, recommended torque values, clamp force, shear force, head markings display, 3d model of head type, standard dimensions of head type


Apple Store | Google Play | website

Search for engineering articles on a wide variety of topics.

AutoCAD DWG Viewer & Editor

Apple Store | Google Play

AutoCAD mobile is a DWG viewing application, with easy-to-use drawing and drafting tools that allow you to view, create, edit and export AutoCAD drawings on mobile devices.

Engineering Unit Converter

Apple Store

A user-friendly unit and currency converter designed for use by everyone.

ISO Fits

Apple Store | Google Play

Calculations for interference fits and tolerances, shows the tolerances of the most commonly used ISO tolerance values and shows the most common ISO tolerance values in a diagram. The results of this application are based on DIN ISO 286.
Nominal dimension: 1-500 mm; contains the following tolerances:

c11, d6, d9, d10, e8, e9, e13, f5, f6, f7, f8, g6, g7, h4, h5, h6, h7, h8, h9, h10, h11, h12, j5, j6, j7, js5, js6, js7, js9, k5, k6, k7, k11, k12, k13, m5, m6, m7, n5, n6, n7, p5, p6, p9, s6

E6, E7, E9, E11, E12, E13, F6, F7, F8, G6, G7,G8, H5, H6, H7, H8, H9, H10, H11, J6, J7, J8, JS6, JS7, JS9, JS8,K6, K7, K8, M6, M7, M8, N6, N7, N8, P6, P7, P8, P9

Steel Profiles

Apple Store

Steel Profiles is an easy to use and full-featured reference tool that includes steel shapes from American, Canadian, British and European standards. Geometry, detailing and design properties are available for each shape, complete with a full description. Shapes are sortable and searchable by different criteria. Each value can be converted to different units.

Engineering Basics Guide

Apple Store | Google Play

With more than 8,000 Engineering Terms and lots of Engineering Equations and Formulas: actuators, aluminium and metals, automobile engineering, cables and wires, design and drafting, electrical-mechatronics and robotics, electromechanics, hydraulics, instrumentation and measurement, intelligent systems, manufacturing processes, mechanics, physics and chemistry, principles and standards, thermodynamics and thermo-science, tools and technology.

EduCalc Classic

Apple Store | Google Play

A powerful, flexible graphing calculator, featuring Scientific calculator, Graphing, Unit conversion, Constants for scientific calculations, Quadratic formulas, Significant figures, Statistics histograms and plots with optional regression line.



The Engineering Unit Conversion Calculator. Everyone in the office should have this engineering unit conversion calculator on their computer. It proves invaluable time and again when an exact conversion from one set of engineering units to another is required quickly. In addition to pressure, torque, force and distance, there are a wealth of other things that it can convert including temperature and computer bits & bytes!


Apple Store | Google Play| Microsoft Store

Wolfram|Alpha is the world's leading source for instant expert knowledge and computation: mathematics, statistics & data analysis, physics, chemistry, materials, engineering, astronomy, earth science, life sciences, computational sciences, units & measures, dates & times, weather, places & geography, people & history, culture & media, music, words & linguistics, sports & games, colors, money & finance, socioeconomic data, health & medicine, education, organizations, transportation, technological world, web & computer systems




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