I was looking for a I was looking for a replacement for my hp10c. The 15c doesn't have the same features, but this app does an excellent job of emulating it. Worth the price.
Big recommendation Fabulous! Costs less than new batteries for my HP 32SII and works a treat. Junking my old calculator now!
Named macros RCL-EEX and STO-EEX support
New layouts (1024x600, Galaxy Nexus, ...)
New i key for direct complex numbers input
Gestures support (swipe and long tap)
Memory registers on Search key
Conversions between values (menu and option)
'Duplicate on ENTER' option
Constants (menu and option)
Display format of the numbers option
Macros for easy programming
Complete statistics functions
An advanced, highly customizable, and easy-to-use general purpose calculator
Excellent scientific calculator with expressions, fractions, repeating decimals.