Privacy
Last updated November 4, 2026
Overlap helps a group find a meeting time. It has no accounts. This page explains what it stores and why.
What you enter
- Polls: the title, dates and hours the organizer picks.
- Your response: the name you type and the times you're free.
- Contact info (optional): your email and phone. Only the poll's organizer can see them, so they can send the calendar invite.
Your browser keeps secret keys that let you edit your own response and, if you made the poll, see contact info. Nobody else can use them.
Google Calendar
If you choose Connect Google Calendar, Overlap asks Google for two permissions:
- View your availability (free/busy). Overlap sees only when you're busy, never event titles, descriptions, locations or guests.
- See the list of your calendars, so it can check the calendars you have turned on.
Overlap stores a Google access token on its server so it can refresh your availability every minute on polls you've joined. It uses this access only to mark your free times on those polls. It never edits your calendar, never shares or sells your data, and doesn't use it for ads or anything else.
Overlap's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
While Google is connected, Overlap also remembers which polls you made or answered under your Google email, so connecting the same account on another device brings them back.
Click Disconnect on any poll to stop syncing. Overlap revokes its Google access and deletes the stored token right away. Once no device is connected to that account, the saved list of your polls is deleted too. You can also remove access anytime at myaccount.google.com/permissions.
Calendar files
If you import a calendar file instead, it's read in your browser. Only the resulting free times are saved.
Where data lives
Data is stored with Supabase (database) and the site is hosted on Vercel. Polls stay until they're deleted.
Questions or deletion
Email tschroeder29@students.claremontmckenna.edu to ask a question or have your data deleted.