SyncAI

SyncAI solves two simple problems; when are friends free and what activity should we do.

Simply create a room, invite your friends, see everyone’s overlapping free time, and let AI pick the activity + book it on everyone’s calendar. Optionally tailor activity ideas through each member’s profile. The activity we pick will be close to the overall location of the group.

Features

• Rooms
  • Create/join rooms by code (i.e WVYSS8)
  • View the rooms member list
• Availability
  • Visually displays shared free time amongst all room members via Google Calendar FreeBusy API
  • Overlap visualization with FullCalendar (Week/Day)
• AI scheduling
  • OpenAI suggests an activity and description based on the centroid location of all members
  • Automatically creates a calendar event for all members, invites attendees, and includes the activity link / location via Google Places
• Profiles
  • Each user can save a short bio (i.e I love puzzles and physical activities like running)
  • AI uses group bios to tailor activities

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Tech stack

• Next.js 15
• TypeScript, React 19
• NextAuth (Google provider)
• Supabase (Postgres + RLS)
• FullCalendar (timeGrid)
• OpenAI (chat completions)
• Google APIs (Calendar, Places)

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Architecture

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Database Architecture

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Roadmap

• Date-range picker to fetch availability by visible range
• Category filters and rating/open-now constraints for venue search
• Multiple suggestion options and user voting
• iCal and Outlook calendar support

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Next Steps

• Performance optimizations (reducing latency of AI scheduling)
• Integrate payments via stripe
• Improve UI/UX
• Create demo vid
• Create ios app