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CLUSTER CALENDAR-GUESTS-SYNC · 22 ENTRIES · EARLIEST ENTRY 2026-07-30

Calendar booking link schedulers

This cluster consists of scheduling apps that let users create shareable booking links, pick free times, and sync events to calendars, with guest booking across time zones. Dated entries before the index start appear at irregular intervals from February 2025 to July 2026, with two entries in July 2026 being the most in a single month. The traction leader is opencalendar, the only product with any activity signal (1 star).

Entry timeline

ENTRY TIMELINE

FEB 2025: 1OCT 2025: 1DEC 2025: 1JAN 2026: 1FEB 2026: 1APR 2026: 1JUL 2026: 2AUG 2026: 6SEP 2026: 5OCT 2026: 3
FEB 2025OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 1 hand-coded · 18 unlabelled

Operator · 10 hobby · 1 indie · 1 commercial · 8 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01slotly0★4 dayslivehobbyScheduling app that lets people share booking links, pick free times, sync bookings to Google Calendar, and email invites to guests.
  2. 02opencalendar1★12 daysliveSelf-hostable scheduling app that lets users create booking pages, manage availability, sync calendars, and coordinate team meetings.
  3. 03Calday: Booking & Scheduling0★13 daysliveApp that shares availability links for instant booking, integrates with calendars, and sends automated reminders.
  4. 04Overlap0★9 dayslivehobbyWeb app for group scheduling that lets organizers share a link for guests to mark availability and see overlapping times without accounts.
  5. 05slotlyscheduling0★4 dayslivecommercialScheduling app that lets users create event types, share booking links, and manage appointments with configurable availability.
  6. 06Claro-airbnb-Manager0★25 days—App for short-term rental hosts that synchronizes calendars across Airbnb and Booking.com and automates Moroccan police guest registration.
  7. 07calendario0★17 days—hand-codedhobbyShared calendar web app where anyone with the link can view and edit common events and notes.
  8. 08volta0★1 mo—Booking platform that lets freelancers share personal booking links, display availability, and sync appointments with Google Calendar for clients.
  9. 09vibe0040★1 molivehobbyCalendar sharing app that lets groups and partners view each other's personal appointments in week and month views.
  10. 10Calendly0★1 molivehobbyWeb app that lets users create shareable event types, set their availability, and let guests book meeting times that sync to their calendar.
  11. 11fivezone0★1 mo—hobbyPrivate web app that helps a friend group coordinate across time zones with clocks, weather, chat, and meeting planning.
  12. 12MeetFlow0★2 moliveWeb app that creates shareable booking links and lets guests schedule meetings across time zones with calendar sync.
  13. 13bookjd0★2 moliveindieSelf-hosted booking application that syncs with Google Calendar, processes payments, and lets visitors book available slots.
  14. 14avail0★4 moliveai-builthobbyWeb app that shares calendar availability by encoding schedules into a shareable link, avoiding accounts, databases, or backend storage.
  15. 15feishu-availability-scheduler0★2 molivehobbyMeeting scheduler that lets users share availability, receive booking requests, and auto-create Feishu calendar events with video meetings.
  16. 16nar-passar-det0★2 molivehobbyShared calendar app that lets a group mark availability for dates and find the best time for events.
  17. 17timeslot0★9 mostalelivehobbyWeb scheduling tool that lets people create shareable time-slot links so others can pick meeting availability without creating an account.
  18. 18duet-plan-app0★1 yrabandoned—Shared calendar web app with real-time synchronization for collaborative scheduling.
  19. 19Link-Up-Calendar-0★1 yrabandoned—Web app for friends and family to suggest activities, confirm attendance, and sync events to Google Calendar.
  20. 20日程調整ツール Schedule｜Googleカレンダー連携0★unknownliveScheduling app that displays Google Calendar availability and generates Google Meet or Zoom links for shared scheduling.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.