The calculator for Power Users!

As a real desktop calculator, TopCalculette shows the calculations on a virtual paper tape.

When minimized, you always have it on hand. By using its 12 useful and customizable keys and it's handy tax and percentage features your daily calculations are simpliflied.

Currencies and Units converter.

With the new integrated converter of TopCalculette, metric conversion is a snap. It also allows the immediate conversion of the most common currencies.

Currencies updated by Internet.

Try it without limitations for one month.

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Four Taxation and Percentage keys.

Twelve customizable keys for functions of your choice.


Two modes: pocket or accounting calculator.

• 12 digit universal calculator
• 2 body sizes (with a large one)
• Large display with easy-to-read characters
• Simulated resizable paper tape
• Customizable Tape Font
• Minimized window mode turns application into icon
• Calculate using your Macintosh keyboard
• Customizable Mac keyboard shortcuts
• Pocket/Accounting Mode
• Memory keys
• 12 keys with user setting function
• 1 to 4 Tax/Percents keys pads
• Integrated metric and currency converter with easy selection mode
• Curencies updated by internet (use a RubenSoft dedicated server)
• Built-in 70 currencies
• Integrated units converter
• Built-in 170 units
• Powerful currencies and units editor
• Shows the units on the tape and on the display
• Saved display and tape's sums
• Drag and drop of the sum display
• Drag and drop a selection of the tape
• 3 calculator body appearances
• 3 key colors
• 2 figures appearances
• Customizable display color
• Contextual menus
• Needs only 1.5 MB of memory
• Compatible with OS X 10.0 to 10.5 (PPC and Intel)
• Platinum and Aqua user interface support

Version 7.0 (11/29/2007)

- new features and improvements...
- new leopard skin and new figures font

- ... more, clic below

What's new in this version?