Privacy Policy

Last updated: January 2025

1. Data We Collect

Account data: Email address, name, and password hash when you register.
Portfolio data: Asset allocations and backtest results you choose to save.
Usage data: Page views, feature interactions, and anonymized analytics.
Payment data: Processed securely by Stripe. We never store full card numbers.

2. How We Use Your Data

Provide and improve the portfolio backtesting service.
Process subscription payments via Stripe.
Send important account notifications (no marketing spam).
Analyze usage patterns to improve the product.

3. Data Storage & Security

Your data is stored securely on Neon (serverless PostgreSQL) with encrypted connections. Passwords are hashed using bcrypt. All communication uses HTTPS/TLS encryption.

4. Third-Party Services

Stripe — Payment processing
Neon — Database hosting
Vercel — Application hosting and analytics
Yahoo Finance — Market data (no personal data shared)

5. Your Rights (GDPR)

As an EU resident, you have the right to:

Access your personal data
Correct inaccurate data
Request deletion of your data
Export your data in a portable format
Object to data processing

6. Cookies

We use essential cookies for authentication sessions. No third-party tracking cookies are used. Analytics are collected anonymously via Vercel Analytics.