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
qBittorrent offers a user-friendly interface and built-in search functionalities, making it ideal for casual users. In contrast, rTorrent is geared towards advanced users who prefer command-line interfaces and high customizability, although it may have a steeper learning curve.