Bookface Companion is a Chrome add-on developed by Y Combinator. This free tool is designed to help users stay on track with their Demo Day countdown and conveniently search for Bookface from their Omnibox.

The main feature of Bookface Companion is a count-down clock that displays the remaining time until Demo Day, ensuring users are constantly aware of the approaching deadline. This simple yet effective tool helps maintain a sense of urgency and motivates users to stay focused on their tasks.

Additionally, Bookface Companion allows users to search for Bookface directly from their Omnibox, saving time and effort. With just a few keystrokes, users can easily access the Bookface platform and stay connected with their friends and colleagues.

Bookface Companion also offers an optional Bookface user sidebar in the Gmail thread view. This sidebar enhances the user experience by providing quick access to Bookface features while browsing through emails.

Overall, Bookface Companion is a valuable Chrome add-on for anyone participating in Demo Day and using Bookface. Its countdown feature and convenient Bookface search functionality make it a useful tool for staying organized and productive.