This calculator app features a list.
The numbers and operators you use remain in the list and can be independently edited or added.
Swipe the button to the right to change its position.

In-App Purchases:
(iPhone) available in three lists by deleting the ad.

[Features explained]

Memory function
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Using the memory function allows the following calculations:

For example,
When performing the function
(250×100)+(350×100)
Typing
300×8 [M+] button
400×8 [M+] button
800×8 [M+] button
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Row insert function
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Long tap on a cell to insert a row

E-mail function(Swipe up the screen from the bottom)
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Allows you to e-mail content shown onscreen.
Choose from text e-mails or picture e-mails.
Text e-mails are tab-delimited, so they can be copied and pasted into Excel or other tools.

Rounding function
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If choosing to use rounding, the final figure is not rounded – instead, each line is rounded when calculating.

Example:
If typing 1,450×0.75×2,

If specifying 0 places after the decimal point with 5/4 rounding:
1,450×0.75=1,088
1,088×2=2,176

When set to F (maximum displayable)
1,450×0.75=1,087.5
1,087.5×2=2,175