Added German language support
Toggle language in settings menu
Occasional decimal comma replaced by dot
Added conversions mi/gal <==> l/100km
Added help mode (text for each button)
Units conversion in extra submenu
Added "Settings" submenu
Added "About" information
More views for small devices
Improved button symbols
Alternate views, scrollable
Save / restore preferences / state
Copy / paste display / clipboard
Excellent scientific calculator with expressions, fractions, repeating decimals.
This application supports the calculation for simple and complex formulas.