Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
Soulver is a smart notepad with a built-in calculator. It gives instant answers to any calculations it finds in your text. It's a better way to work stuff out than with a traditional calculator, and a more lightweight tool for quick calculations than a spreadsheet.
Numbr is a currency calculator, a notepad that understands your calculation. You can use notes with numbers alongside each other. And all your numbers are instantly calculated as you type.
Napkin is a unique mix between a notepad and a calculator. Doing quick calculations on your phone has never been easier!