i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
Zylo - Zylo helps organizations optimize their SaaS investments by providing insights around Spend, Utilization, and User Feedback.
dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.
Siftery Track - Effortlessly visualize & optimize your team's software spend
Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.
Cardlife - Track all your business subscriptions with Cardlife.