Ranked in these QuestionsQuestion Ranking
Pro Allows setting up user-defined functions
Great for when you need to perform the same calculations often.
Pro A lot of presets for common calculations
A wide variety of preset conversions, constants and operations are included into the calculator.
Pro Works on the Apple Watch
The application can be used on the Apple Watch.
Pro A free version is available
The free version lacks some of the advanced functionality of the app like engineering and scientific notation, and full support for hexadecimal, octal, and binary calculations as well as some theming and settings options.