Calendly is the scheduling automation platform that UK startups use to eliminate endless email ping-pong over meeting times. It syncs with Google Calendar, Outlook, and iCloud, showing your real availability and letting people book slots directly. The free tier supports one event type and one calendar connection. Essentials (£10/month per user) adds group meetings, round-robin, and custom reminders. GDPR compliant with EU data storage on paid plans.