RubyCalc is a quick, light, and free calculator able to use numbers arbitrarily long (more than 10 figures), type long expressions with parenthesis but without mistake, easily mix numbers in different basis (binary, decimal, hexadecimal).
RubyCalc may be what you are looking for. It supplies an application with its service, and a widget.
With ezCheckPrinting software, you can print professional checks.
Fully functional double-entry accounting application.
Keep track of your incomes and expenses from your computer.
Everything you need to easily do your personal and business taxes.
Create and edit custom invoices SOHO or business purposes.
Keep track of your incomes and expenses from your Mac.
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