The debut product produced by Chiu Software Systems is BiM, short for "Bc iMproved". BiM is a calculator alternative to the default OS X calculator and is built on the UNIX program "bc".

RealCalc Scientific Calculator is described as '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' and is a Calculator in the education & reference category. There are more than 100 alternatives to RealCalc Scientific Calculator for a variety of platforms, including Android, Windows, Web-based, iPhone and Mac apps. The best RealCalc Scientific Calculator alternative is SpeedCrunch, which is both free and Open Source. Other great apps like RealCalc Scientific Calculator are Fossify Calculator, Qalculate!, OpenCalc and fxSolver.
The debut product produced by Chiu Software Systems is BiM, short for "Bc iMproved". BiM is a calculator alternative to the default OS X calculator and is built on the UNIX program "bc".

CrossCalc is day to day Scientific Calculator that can be used on all your devices. It respects your privacy and does not show any ads.




Unit Wolf is a unit conversion program created for quick and reliable conversions. Enter entire equations or just simple numbers. Convert between 170 currencies or easily add different units together. Supports Length, Temperature, Pressure, Digital Storage, Mass, Speed, Volume...


A simple calculator and unit converter app with Material Design 3 inspired by Windows Calculator.



A Simple but elegant Calculator app made with Flutter using Google's Material Design with Currency (Exchange Rate) and Unit Converter.



Calcbuddy Calculator is an easy to use scientific calculator.
The calculator features:

Test Cal is a brand new calculator app designed specially for youngsters. You can use this app for your mathematical problems. Its special feature is its simplicity of organized features like using of sum or divide with single touch.



A Calculator with the most minimal design and custom themes available on the Play Store, N Calc is your next app for all your daily calculations or not-so-daily scientific ones.



TTCalc is an open source bignum mathematical calculator. It features arithmetical functions, trigonometric functions, inverse trigonometric functions, hyperbolic functions, inverse hyperbolic functions, logical operators, logarithms, functions for converting between degrees and...



Calcul.io offers realtime calculator with notepad like interface and advanced features like unit conversions, currency rates or date time math.

A text calculator for natural language expressions, variables & unit conversions, with a vim-style TUI. Inspired by Numi.


Calculator software try too hard to imitate the real thing. They end up big and clunky and their limitations are carried on. Kalq is a user experience experiment to discover an elegant solution to everyday calculations.
