RJ Calculator is described as 'Scientific calculator with most basic functions like trigonometric functions, logarithms and base conversion. Also, statistic calculations like standard deviation and regression' and is an app in the education & reference category. There are more than 50 alternatives to RJ Calculator for a variety of platforms, including Android, Windows, Web-based, Linux and Mac apps. The best RJ Calculator alternative is Wolfram Alpha, which is free. Other great apps like RJ Calculator are SpeedCrunch, fxSolver, Numbat and GeoGebra Scientific Calculator.
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
Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
GermanyEU
High precision scientific calculator with full support for physical units (web and terminal versions).
GermanyEU
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
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
Calculator++ is an advanced, modern and easy to use scientific calculator.
Russia
Calculator is an application that solves mathematical equations and is suitable as a default application in a GNOME Desktop environment.
United States
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
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).
