GKrellM (GNU Krell Monitors) is a system monitor software based on the GTK+ toolkit that creates a single process stack of system monitors. Developed by GKrellM
License: Open Source
GeekTool is primarily focused on customization and visual appeal, allowing users to display dynamic content on their desktops through scripts. In contrast, GKrellM is a system monitoring tool with strong capabilities in metrics and cross-platform compatibility, making it better suited for users who need extensive system information at a glance.