Productivity
TidyCal
Online scheduling and appointment booking tool built by AppSumo. Create unlimited booking pages, sync Google/Outlook calendars, accept Stripe/PayPal payments, and manage team bookings. Agency plan unlocks round-robin scheduling (auto-assigns new bookings to next available team member), collective meetings, unlimited teams, unlimited team members, custom domain, SMS reminders, and embeddable booking widgets. The Calendly alternative that pays for itself in under 3 months vs any subscription competitor.