Cal.com covers the booking link case well, but its real distinction is that scheduling is exposed as infrastructure. Availability, event types, and bookings all have APIs, and the booking page can be embedded rather than linked.
Schedule and analyse posts across 30+ social networks
Stars35.3K
Commit8h ago
LicenseAGPL-3.0
Postiz is a self-hostable scheduler for teams that publish to many networks and do not want to pay per seat for the privilege. It covers planning, drafting, approval, and publishing, with AI assistance for turning one post into per-network variants.
Social media scheduling with a deliberately small surface
CompanyBuffer
Since2010
PricingFreemium
Buffer schedules posts and reports on them, and has resisted becoming a suite for over a decade. That restraint is why it stays usable for a one person marketing function.
Calendly removed an email thread from every meeting anyone arranges with someone outside their company. Share a link, the other person picks from real availability, and both calendars update.