Aepryus Calculator is a scientific RPN calculator. It features
Always OnTop Option, Very Small Screen Size, intuitive key placement and
a clever memory function. It sports the standard scientific functions,
as well as Octal, Decimal and Hexadecimal modes.

Aepryus Calculator is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  20.00USD.