Apps similar to Calculairum include SpeedCrunch, which is free and open source. Other options are Qalculate!, fxSolver, GeoGebra Scientific Calculator and Google Calculator. Calculators like Calculairum are a crowded field, with more than 25 alternatives for Android, Windows, the web, iPhone and iPad.
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
Scientific calculator with arbitrary precision and portrait and landscape mode. Fraction and periodic numbers support. Looks like a real calculator! The calculator has up to 100 digits of significand and 9 digits of exponent.
SloveniaEU
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
Calculator is a basic calculator application made by Apple Inc. and bundled with its macOS, iOS, and watchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and...
United States
A graphical scientific calculator that is easy to use and has some advanced functionality such as vector arithmetic and variable solving.
handyCalc is a powerful calculator with automatic suggestion and solving which makes it easier to learn and use.
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.
HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3. Exchange rates table and currency converter are update from Internet by one click. Units converter makes easier to convert various units,14 categories of units: length, temperature...
PolandEU
A calculator for Android.
Algebraic entry. Full on-screen history (multi-line display). Use your phone's keyboard or on-screen buttons. Usual functions: trig, log, etc. Parentheses. Copy to clipboard.
United Kingdom
Do you really need your calculator's on-screen number pad? (You know, the virtual keyboard?)
