Apps similar to Engineering Calculator include SpeedCrunch, which is free and open source. Other options are Qalculate!, fxSolver, Numi and GeoGebra Scientific Calculator. Calculators like Engineering Calculator are a crowded field, with more than 50 alternatives for Windows, Android, the web, iPhone and Mac.
PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a...
United Kingdom
Calcbot is a simple and beautifully designed calculator for your iPhone, iPod touch and iPad. You’ll never open the built-in Calculator app again.
United States
Kalk is a convergent calculator application built with the Kirigami framework. Although it is mainly targeted for mobile Linux platforms, it can also be used on the desktop.
Germany
EU
NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.
FranceEU
Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, break-even point, etc. It's very user-friendly, flexible and usable on web, mobile and as an embeddable web widget.
PolandEU
The Unsure Calculator is an online tool that lets you calculate with numbers you’re not sure about.
CzechiaEU
HungaryEU
CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate intermediate results and subsequently correct or change all numbers and operations.
GermanyEU
With MyScript Calculator, perform mathematical operations naturally using your handwriting.
FranceEU
handyCalc is a powerful calculator with automatic suggestion and solving which makes it easier to learn and use.
A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:
