| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | — | Yes |
| Linux | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Window Management Software | 8.2 (#8) | 7.2 (#43) |
| Maker and origin | The site says IceWM was created by Marko Maček in 1997 using C++. | Benbuck Nason maintains this fork of RBTray, which originated from the SourceForge RBTray project. |
| Purpose | IceWM is a window manager for the X Window System designed for speed, simplicity, and not getting in the user’s way. | RBTray is a small background Windows program that minimizes windows to the system tray. |