Free App: Digits, the calculator for humans [iOS]

Get organized! Conquer numbers on the go.
We're human. We're busy. We make mistakes. So we designed a calculator for humans, from the ground up. Digits combines the edit-ability of a spreadsheet with the simplicity of calculator. Dare we say it? Digits is a calculator a human can love.
So, why do so many humans love Digits? Its uniquely correctable tape means never worrying if you entered a calculation correctly. Make a mistake? Tap any entry on the tape to correct it (or edit, insert, copy and more). Then, add a label/comment and email or print the tape.
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Digits is great for:
• Adding up expenses, labeling and emailing them
• Doing a quick calculation and being able to double-check and correct entries with ease
• Entering a long series of calculations and then emailing it to yourself for import into Numbers or Excel
• Quickly calculating a couple scenarios by editing any previous entry to automatically update the total
• Easily creating a grand total from a number of previous calculations with flagging
• Keeping a series of short calculations available for later reference
• Sharing via email, printed output or by files.
• EASY: perfect for a quick calculation, powerful enough for pages of them.
• MADE FOR iPad: uses the whole iPad display to leave cramped buttons behind.
• MADE FOR iPhone: all of the iPad features on an interface designed just for iPhone.
• TAPE: never lose track of what you've entered.
• PRINT: print-quality output with AirPrint (where available).
• SHARE: Use iTunes File Sharing to backup and share .digits tape files to other Digits Calculator users and your other iOS devices.
• EMAIL: tap to email your tape.
• COMMENTING: label any item in your tape and include comments in tape emails.
• CORRECTIONS: make edits and inserts to previous calculations at any time!
• SIMPLE TAPE STRUCTURE: one calculation on each tape line means quick one-touch access for edits.
• AUTOSAVE: holds your calculations and tape in place for the next time you return.
• RUNNING TOTAL: always displays the total above so you can focus on what you're entering.
• CUSTOMIZABLE: a wide arrange of settings, including currency mode, sound and background color! ;-)
To see a video Digits in action on both iPhone and iPad, click the Shift Web Site link below!