Privacy Policy

Last updated:

This Privacy Policy explains what information Papermarket ("we") collects and how we use it. Papermarket is an educational paper-trading simulator that uses virtual money only.

1. Information we collect

Account information — the email address you sign up with and a securely hashed (never plaintext) password.
Activity within the Service — your simulated orders, fills, positions, virtual balance, level, comments, and API keys.
Technical data — basic logs such as IP address, timestamps, and request information, used for security, rate-limiting, and reliability.

We do not collect payment-card numbers, bank details, government IDs, or crypto wallets — the Service involves no real money.

2. How we use information

We use it to operate and secure the Service: to authenticate you, run your simulated account, prevent abuse, enforce rate limits, debug, and improve the product. We do not sell your personal information.

3. Cookies

We use a single signed session cookie to keep you logged in. We do not use third-party advertising or cross-site tracking cookies.

4. Sharing

We may share information with infrastructure providers that host and run the Service on our behalf, and where required by law or to protect the Service. Leaderboards and live-activity displays show only an anonymized handle, never your email.

5. Third-party data

Market data shown in the Service is derived from third parties (e.g., Polymarket, Kalshi). This policy covers our handling of your data, not those services; review their policies separately.

6. Retention

We retain account and activity data for as long as your account is active and as needed to operate the Service. You may request deletion of your account and associated personal data (see Contact).

7. Security

Passwords are stored only as salted hashes and sessions are signed. No system is perfectly secure; we cannot guarantee absolute security, and you use the Service at your own risk.

8. Your choices

You can request access to, correction of, or deletion of your personal data by contacting us. Depending on your location, you may have additional rights under laws such as the GDPR or CCPA.

9. Children

The Service is intended for users 18 and older and is not directed to children.

10. Changes & contact

We may update this policy and will revise the date above. Questions or requests: privacy@calcutrend.com.