Clean and unobtrusive design, with a focus in typography, layout, ample whitespace, and a color palette that provides context and visual information without being gaudy and flashy.

With that said, it looks exactly like it could be a random CLI application running in an Oh My Zsh theme. Not much differentiation there.

EDIT: I feel like this app could be created in a few hours by wrapping a context-aware unit/currency conversion library with Rich Python [0].

[0]: https://github.com/willmcgugan/rich