Apps similar to Math42 include Wolfram Alpha, which has a free version. Other options are SpeedCrunch, Qalculate!, fxSolver and Numi. Calculators like Math42 are a crowded field, with more than 25 alternatives for Android, iPad, iPhone, Mac and the web.
Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.
United States
High-precision scientific calculator for Windows, macOS, and Linux, handling up to 50-digit calculations with complex numbers, units, constants, vectors, and matrices. It supports user-defined variables and functions, editable history, per-result formatting, and tabs.
Germany
EU
Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).
SwedenEU
Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
GermanyEU
Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...
Russia
Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?
Australia
Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!
AustriaEU
Calculator provides simple and advanced mathematical functions in a beautifully designed app.
United States
Open-source calculator app with Windows Calculator features including standard, scientific, and programmer modes, plus unit and currency conversions. Available for macOS, Linux, Android, iOS, and web, with an intuitive interface for both desktop and mobile devices.
Canada
galculator is a GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD).
RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing. Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. See elsewhere on this page for the l.
United Kingdom
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
