Vinagre is a VNC, SSH, RDP and SPICE client for the GNOME desktop environment. Developed by Jonh Wendell
License: Open Source
UltraVNC is a versatile, open-source remote desktop solution with robust features for various platforms, while Vinagre is tailored more for Linux users with an emphasis on simplicity and integration with desktop environments. Both have their strengths, but UltraVNC offers broader compatibility and features, while Vinagre excels in ease of use for Linux users.