SpeedCrunch is described as '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' and is a very popular Calculator in the education & reference category. There are more than 100 alternatives to SpeedCrunch for a variety of platforms, including Android, Windows, Web-based, iPhone and Mac apps. The best SpeedCrunch alternative is Qalculate!, which is both free and Open Source. Other great apps like SpeedCrunch are OpenCalc, GeoGebra Scientific Calculator, Numbat and fxSolver.
OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.
A calculator with syntax highlighting that supports user-defined variables and functions, math-like syntax, and some more advanced operations such as derivation and integration (estimate), and complex numbers.
Sicyon is an all-in-one scientific calculator for every student or professor, researcher or developer - everybody doing physics or chemistry / science or engineering using formulas and tables of constants.
Free scientific calculator which saves you time and frustration by providing unique easy to use tools.
United States
Calcul.io offers realtime calculator with notepad like interface and advanced features like unit conversions, currency rates or date time math.
Ever wanted to work something out, but your default calculator isn't powerful enough, and it's not worth creating a spreadsheet for?
Programmable scientific calculator which has more than 150 mathematical functions and all of them return as many digits as you need. It can calculate with real numbers, complex numbers, fractions, vectors, matrices. Commands if, goto and print can be used to create scripts.
Czechia
EU
Its an app where you do maths like a normal person. It lets you type whatever you want and smartly figures out what is math and spits out an answer on the right pane. Then you can plug those answers in to future equations and if that answer changes, so does the equations its...
Calculator with percentages, powers and functions. History with comments that is synced across all your devices. Cursor for editing anywhere. Simple interface with dark and light themes.
Frink is a practical calculating tool and programming language designed to make physical calculations simple, to help ensure that answers come out right, and to make a tool that's really useful in the real world.
