Daybridge - A calendar built for people, not companies.
Flexibits - Makers of Cardhop, Chatology, and Fantastical.
Skill Lake - Organize Learning | Content Track Progress | Grow Your People
Clean Google Calendar - Makes Google Calendar look nicer & launches as a desktop app
Courselle's Learning Calendar - Manage corporate learning assignments with a visual calendar
BusyContacts - BusyContacts is a contact manager for macOS.