Navigator - The Teamwork assistant — run great meetings without busywork
Vimcal - Vimcal is the world’s fastest calendar, beautifully designed for people who work remotely and live in their calendars.
Sprout - When HP’s Sprout Pro was introduced in 2014, everyone saw the possibilities.
Add-to-Calendar Button Generator - This open source projects lets everybody create amazing buttons, where users can add events to their calendars.
Tatsu - Standup meetings for remote teams.
Plan - Plan is a better way to organize.