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PolyBuys Privacy Policy

Last updated: April 20, 2026

PolyBuys is a student marketplace for the Cal Poly community. This Privacy Policy explains what information we collect, how we use it, and the choices you have when you use the PolyBuys app, website, and related services.

This policy applies to the PolyBuys iOS app, Android app, website, and any related features we operate.

Quick summary

  • We collect your Cal Poly email, account details, profile information, listings, listing photos, messages, reports, and other content you choose to submit.
  • We also collect optional push notification tokens and limited device, app, crash, and error diagnostics to keep PolyBuys working reliably.
  • We use this information to authenticate users, operate the marketplace, enable messaging and notifications, prevent abuse, and improve the service.

Information we collect

We collect information you provide directly when you create an account, verify your email, edit your profile, upload photos, post a listing, message another user, save a listing, report content, or contact support.

This can include:

  • Account and verification data, such as your Cal Poly email address, authentication records, and session information.
  • Profile data, such as your name, bio, major, graduation year, and profile photo.
  • Marketplace content, such as listing titles, descriptions, prices, item condition, categories, listing images, saved listings, messages, reports, and blocks.
  • Notification and preference data, such as your push notification token and whether message notifications are enabled.
  • Technical and diagnostic data, such as device/app diagnostics, crash reports, and error logs.

How we use information

We use information we collect to:

  • verify eligible users and secure accounts;
  • create profiles, publish listings, show marketplace content, and enable messaging between users;
  • send verification emails and optional push notifications;
  • detect spam, scams, abusive content, and other misuse of the service; and
  • troubleshoot bugs, monitor reliability, respond to support requests, and improve PolyBuys.

Permissions and device access

Some features ask for device permissions only when you choose to use them.

  • Photo library or camera access is used only if you choose to upload listing photos or a profile picture.
  • Notification permission is used only if you allow PolyBuys to send message-related push notifications.
  • PolyBuys stores authentication/session data locally on your device so you can stay signed in.

What we do not currently collect

  • We do not currently collect precise GPS location.
  • We do not run third-party advertising inside PolyBuys or sell personal information.
  • We do not process payments inside the app.

How information is shared

Some information is shared with other users as part of the marketplace experience. For example, your public profile details, listings, listing photos, and messages are visible to the users involved in those interactions.

We may also share information:

  • with service providers that help us operate PolyBuys, including Convex for backend infrastructure and storage, Resend for verification emails, Expo push notification services, and Sentry for crash and error monitoring; and
  • when required by law, legal process, or a good-faith belief that sharing is necessary to protect the safety, rights, or integrity of PolyBuys, our users, or the public.

Retention and deletion

We keep information for as long as needed to operate the service, maintain security, resolve disputes, and enforce our policies.

If you delete your account, we will remove or de-identify associated account data from active systems, subject to records we may need to keep for fraud prevention, abuse investigation, or legal compliance.

Your choices

  • You can update your profile details in the app.
  • You can remove or replace uploaded photos and listings you no longer want to display.
  • You can disable message notifications.
  • You can request account deletion from the app settings.

Children's privacy

PolyBuys is not directed to children under 13, and we do not knowingly collect personal information from children under 13.

Changes to this policy

We may update this Privacy Policy from time to time. If we make material changes, we will post the updated policy here and update the "Last updated" date.

Contact us

If you have questions about this Privacy Policy or how PolyBuys handles data, contact us at support@polybuys.com.