Comparison of software calculators

Immediate execution calculators (button-oriented)

Name	Software license	OS Support	Precision	Scientific mode	RPN mode	Hex/oct/bin mode
DeskCalc	MIT	Haiku	Arbitrary decimal	Yes	No	No
Desmos	Proprietary	Web browser, iOS, Android	Floating point	Yes	No	No
Mac OS calculator	Proprietary	macOS	Double (64 bit)	Yes	Yes	Yes
Calculator (Nintendo Switch)	Proprietary	Nintendo Switch	Fixed decimal (up to 16 digits)	Yes	No	No
GeoGebra	Varies	Web browser, Windows, macOS, Linux, iOS, Android	Arbitrary decimal	Yes	No	Yes
GNOME Calculator	GPL-3.0-or-later	Linux, BSDs, macOS	Arbitrary decimal	Yes	Yes	Yes
GraphCalc	GPL-2.0	Windows, Linux	Double (64 bit)	Yes	No	Yes
KCalc	GPL-2.0-or-later	Linux, BSDs, macOS	Arbitrary decimal	Yes	Yes	Yes
Qalculate!	GPL-2.0-or-later	Linux, Windows, macOS	Arbitrary decimal	Yes	Yes	Yes
Windows Calculator	MIT	Windows	≥32 decimal	Yes	Yes	Yes
WRPN Calculator	Public domain	Windows, Linux, macOS, Android	Float	Yes	Yes	Yes
xcalc	X11	Linux	Arbitrary decimal	Yes	Yes	Yes

Name	Software license	OS Support	Precision	Hex/oct/bin mode	RPN mode	Defining variables	Defining functions	Syntax highlighting	Unit conversion	Multiple Steps
Atari Calculator	Proprietary	Atari 800	Float	Yes	Yes	Yes	Yes	No	Yes	Yes
bc programming language	GNU General Public License	Unix	Variable	Yes	Unknown	Yes	Yes	No	No	Unknown
Mathcad	Proprietary	Windows	Floating point (typically double)	Yes	No	Yes	Yes	Yes	Yes	Yes
Mathematica	Proprietary	Windows, macOS, Linux	Arbitrary precision	Yes	No	Yes	Yes	Yes	Yes	Yes
Maxima	GPL-2.0-or-later	Windows, macOS, Linux, BSD	Arbitrary precision	Yes	No	Yes	Yes	Yes	Yes	Yes
Symbolab	Proprietary	Web browser, iOS, Android	Symbolic and numeric	Yes	No	Yes	Yes	No	Yes	Yes
WolframAlpha	Proprietary	Web browser, iOS, Android	Arbitrary precision	Yes	No	Yes	Yes	No	Yes	Yes