MadAdder features
One more square foot of desk space

Your old printing calculator is now history. Free up another electrical socket too.
4 function calculator
Add, subtract, multiply and divide. Includes sub-total, total and percentage key.
Decimals and 15 digits
Choose from floating decimal, fixed decimal (0,1,2,4,6) or auto-decimal (+).
Endless virtual adding machine tape
It just keeps scrolling up inside your monitor. You can use the scroll bar to review it from top to bottom.
Prints on any printer, any size paper
The MadAdder looks at the paper size and decides how many columns will fit on the paper.
Date and time can be printed on printout
You decide if you want the date and/or time to print at the top of each page.
Entries can be edited or deleted
And rows can be inserted even after a total has been calculated. Any changes will update the next total.
Text can be entered anywhere on tape
I'll bet you often wished your old printing calculator could do that!
Hear the machine sound
In case you miss the rhythm of the old machine, you can turn on one of seven classic calculator sounds.
Hear the numbers as you input them
If you are not a touch-typist, you can still look at your source document and hear your input. A great way to catch mistakes! Choose any one of six voices.
Actual size - can be shortened to show only top and first row.
Hear the tape being called back from any point
This is the more traditional way a bookkeeper checks a tape. Choose any one of Abuh, Bill, Olga, Paddy, Sean or Susy to call back your tape.
Change the color and size of the software
Depending on how you are feeling, you can choose one of the many built-in color themes, or create and save your own theme. You can stretch the MadAdder to the height of your screen or squeeze it down to only few inches high.
BONUS!!!
The MadAdder includes a Converter which converts nearly one hundred units of length, area, volume, temperature and time between the US, imperial, and metric sytems. Anybody know how many US gallons are in a firkin? The converter also has a button which will connect you to a website showing the current currency conversions.
If we have missed any features you would like to see, please let us know at features@themadadder.com
Actual size
Technical support: support@themadadder.com