rTorrent is a text-based ncurses BitTorrent client written in C++, based on the libTorrent libraries for Unix. Developed by Jari Sundell
License: Open Source
Calypso offers a user-friendly interface with advanced scheduling options, making it suitable for users who prioritize ease of use. In contrast, rTorrent is lightweight and highly customizable, attracting advanced users who prefer automation and efficiency.