Privacy Policy

To make the magic happen, we need to access a little bit of information. We only ask for what's absolutely necessary to block out your busy time.

• Account Info: Your name and email. Standard stuff.
• Calendar Data (The Important Part): We look at event start/end times and your busy/free status. That's it. We never access or store event titles, descriptions, attendees, or locations. Your private event details stay private.
• OAuth Tokens: Secure, encrypted keys to connect to your calendar accounts (Google, Microsoft, etc.). We can't see your password.
• Usage Data: Anonymous logs and error reports that help us fix bugs and make the service better.

Your data has one job here: to power the calendar sync you signed up for.

• To Sync Calendars: We read event times from one calendar and create simple "Busy" blocks on your others. No details are ever copied over.
• To Keep Things Running: We use usage data to monitor for problems and improve performance. This data is anonymized.
• To Help You Out: If you run into trouble, our support team might need to look at your sync logs to figure out what's wrong.

We don’t sell your data. We only share it with the essential partners who help us run Caltsu.

• Calendar Providers: We have to talk to Google, Microsoft, and Apple to sync your calendars. This is the core of the service.
• Infrastructure Partners: We use trusted services for hosting (Vercel), databases (Neon), payments (Stripe), and background jobs (Inngest). They're all under strict data processing agreements.
• When Legally Required: If we're required by law, we may have to disclose user data.

You are in complete control.

• Access or Correct: You can see and update your account info in your dashboard settings.
• Disconnect: You can disconnect any calendar account at any time.
• Delete Everything: You can permanently delete your account and all associated data from your settings page. This action is irreversible and will also remove all blocking events created by Caltsu from your calendars.

For any data requests, just email us at the address below.