Expensify - Import expenses directly from a credit card to create free expense reports quickly. Approve reports online and reimburse directly to a checking account with one click.
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
Zoho Expense - Automate your expense reporting process and streamline the approval flow.
awesome - A dynamic window manager for the X Window System developed in the C and Lua programming languages.
Spendesk - Smart spending solution for agile teams
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.