This Privacy Policy explains how H|ψ⟩ Quantum Finance ("we", "our", "the Service") collects, uses, and discloses information about you when you use our website, APIs, and related services.
1. Information We Collect
1.1 Information you provide
- Account information: when you create an account, we collect your username, email address, password (hashed), and optionally first name, last name, date of birth, and phone number.
- Email subscription: if you subscribe to email alerts, we collect your email address.
- Stock watchlists: the tickers you select for analysis are stored together with your IP address so we can restore your view on subsequent visits.
- Payment information: paid subscriptions are processed by third-party payment providers (e.g. Stripe). We do not store full card numbers on our servers.
1.2 Information collected automatically
- Log data: IP address, browser type, device identifiers, pages visited, and timestamps.
- Cookies and local storage: small data files used to keep you signed in, remember your settings, and measure usage.
2. How We Use Information
We use the information we collect to:
- Operate, maintain, and improve the Service;
- Authenticate users and secure accounts;
- Generate predictions, analytics, and reports tailored to your watchlist;
- Send transactional emails (account, subscription, password reset) and, with your consent, marketing or alert emails;
- Comply with legal obligations and enforce our Terms.
3. Third-Party Services
We rely on the following categories of third-party services. Each has its own privacy policy and data-handling practices:
- Market data providers (Yahoo Finance via yfinance, Alpha Vantage) to retrieve quotes, fundamentals, and history.
- AI and language-model providers (Anthropic) when you use AI-assisted analysis features. Conversations may be sent to the provider to generate responses.
- Email delivery (SMTP / transactional email providers) to send notifications and newsletters.
- Hosting and infrastructure providers used to run the Service.
4. How We Share Information
We do not sell your personal information. We may share it only:
- With service providers acting on our behalf (see Section 3), bound by confidentiality obligations;
- To comply with applicable law, regulation, legal process, or governmental request;
- To protect the rights, property, or safety of us, our users, or others;
- In connection with a merger, acquisition, or sale of assets, with notice to you.
5. Data Retention
We retain personal information for as long as your account is active or as needed to provide the Service. Watchlist data may be retained longer in aggregated, de-identified form for analytics. You may request deletion of your account at any time (see Section 7).
6. Security
We use commercially reasonable safeguards to protect your information, including encryption in transit (HTTPS), hashed password storage, and access controls. No method of transmission or storage is 100% secure, and we cannot guarantee absolute security.
7. Your Rights
Depending on your jurisdiction (including under the EU GDPR, the UK GDPR, and California's CCPA / CPRA), you may have the right to:
- Access the personal information we hold about you;
- Request correction of inaccurate information;
- Request deletion of your information;
- Object to or restrict certain processing;
- Withdraw consent for marketing communications;
- Lodge a complaint with your local data-protection authority.
To exercise these rights, contact us at [email protected]. We will respond within a reasonable timeframe.
8. International Transfers
Your information may be stored and processed in countries other than the one in which you reside. By using the Service you consent to such transfers, subject to appropriate safeguards required by applicable law.
9. Children's Privacy
The Service is not directed to children under 18. We do not knowingly collect personal information from children. If you believe a child has provided information to us, please contact us so we can delete it.
10. Changes to This Policy
We may update this Privacy Policy from time to time. We will post the updated version on this page and update the "Effective date" at the top. Material changes will be communicated through the Service or by email.
11. Contact
For questions about this Privacy Policy or our data practices, email [email protected].