Stacniac is an RPN calculator software that provides a user-friendly interface to perform mathematical operations.
Stacniac has a unique feature - it doesn't have buttons. Instead, you enter numbers and commands via keyboard input. While this may not appeal to everyone, those who prefer RPN and keyboard input may find Stacniac to be a useful tool.
In terms of functionality, Stacniac has a fairly extensive set of commands which can be called by typing short, obvious words. It's also programmable to a limited extent.
One thing to keep in mind is that Stacniac requires Java 1.3 or later. The most recent release includes quit handling changes for Jaguar. Overall, if you're in the market for an RPN calculator with a unique input system, Stacniac may be worth checking out.
Version 1.0: N/A