Privacy Policy

Last updated: March 2026

1. What We Collect

CardRoundup collects the minimum data needed to provide the service:

• Email address — collected when you sign in with Google or enter it in the email bar. Used to save your wallet and send optional monthly reminders.
• Card selections — which credit cards you add to your wallet.
• Claimed credits — which credit line items you've marked as used.
• Usage analytics — anonymous events (page views, button clicks) collected via PostHog to help us improve the product. No personal data is attached to these events.

We do not collect your credit card numbers, account numbers, transaction history, or any financial data. We have no connection to your actual credit card accounts.

2. How We Use It

• To save and restore your wallet across devices when you're signed in.
• To send you a monthly email reminder before your credits expire (only if you've signed in or subscribed).
• To improve CardRoundup based on anonymous usage patterns.

We will never sell your data, use it for advertising, or share it with third parties for marketing purposes.

3. Where It's Stored

Your email, card selections, and claimed credits are stored in Resend, an email platform we use for contact management and reminders. Resend stores data on servers in the United States. You can review Resend's privacy practices at resend.com/legal/privacy-policy.

Anonymous analytics events are processed by PostHog. No personally identifiable information is included in these events.

4. Google Sign-In

When you sign in with Google, we receive your name, email address, and profile photo from Google. We use your email to identify your account and your name/photo to display in the interface. We do not access your Google account data, Gmail, Google Drive, or any other Google services beyond your basic profile.

5. Cookies and Local Storage

CardRoundup uses your browser's localStorage to remember your wallet between visits — no account required. We do not use tracking cookies. PostHog may set a cookie to identify anonymous sessions; this contains no personal information.

6. Your Rights

You can:

• Access the data we hold about you by emailing hi@cardroundup.com.
• Delete your account and all associated data by emailing us.
• Opt out of monthly reminder emails by signing out of your account.
• Clear your local wallet at any time using the Edit wallet panel.

7. Children

CardRoundup is not directed at children under 13. We do not knowingly collect data from anyone under 13.

8. Changes to This Policy

We may update this policy from time to time. The date at the top reflects the most recent revision. Continued use of CardRoundup constitutes acceptance of the current policy.

9. Contact

Privacy questions or deletion requests: