Apps similar to NaSC include Wolfram Alpha, which has a free version. Other options are SpeedCrunch, Qalculate!, Hurmet and Numbat. There's no shortage of Calculators like NaSC, with more than 50 alternatives for Windows, Mac, Android, iPhone and Linux.
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
SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.
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
Hurmet is a web-based rich text editor endowed with live calculations. With it, you can create documents that do calculations and preserve an easy-to-read record of your work.
High precision scientific calculator with full support for physical units (web and terminal versions).
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
A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.
United States
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).
Next generation notepad-based calculator, built with extendibility and privacy in mind. Works on Windows, macOS and Linux.
