Privacy Policy

1. Data we collect

We collect the following categories of data:

• Account data: email address, display name, and an encrypted password (we never store passwords in plain text).
• Billing data: handled by our payment processor (Stripe). We receive a subscription status and the last four digits of your card — never your full card number.
• Usage data: the positions, portfolios, and analytics you enter, plus pages visited and features used, so we can operate and improve the Service.
• Technical data: IP address, browser type, device, and approximate region, collected through standard server logs and privacy-respecting analytics.

2. How we use your data

We use your data to provide and maintain the Service, process subscriptions, compute your analytics (edge, CLV, portfolio projections), send transactional and — where you opt in — marketing emails, prevent fraud and abuse, and comply with our legal obligations. We do not sell your personal data.

3. Data storage & security

Data is encrypted in transit (TLS 1.3) and at rest (AES-256). Access is restricted on a need-to-know basis and protected by strong authentication. See our Security page for details. No system is perfectly secure, but we work continuously to protect your information.

4. Third-party services

We rely on a small number of trusted processors, including Stripe (payments), our email provider (transactional and newsletter delivery), our cloud hosting providers, and Sentry (error and performance monitoring). Each processes data only as needed to deliver their function and under their own privacy commitments. Returns and broker data come from third-party feeds; any trading you do happens at independent, licensed operators governed by their own policies.

5. Cookies

We use essential cookies to keep you signed in and remember preferences (such as language). We also run error and security monitoring (via Sentry) as a legitimate interest, to keep the service reliable. Optional analytics — including performance tracing and session replay — load only after you consent. You can manage or withdraw consent at any time through the cookie banner or your browser settings.

6. Your rights

Depending on your jurisdiction (including under the GDPR and similar laws), you may have the right to access, correct, export, or delete your personal data, and to object to or restrict certain processing. To exercise any of these rights, email support@yoseri.com and we will respond within the timeframe required by applicable law.

7. Data retention

We keep your data for as long as your account is active and as needed to provide the Service. After account closure we delete or anonymise personal data within a reasonable period, except where we must retain certain records to meet legal, tax, or accounting obligations.

8. Children's privacy

The Service is strictly for adults. You must be at least 18 years old (or the legal gambling age in your jurisdiction, whichever is higher) to use Yoseri. We do not knowingly collect data from minors and will delete any such data if discovered.

9. Where your data is hosted

Yoseri is hosted in a single location: the United States. Our servers (Hostinger) and our encrypted backups (Amazon Web Services) are both located there — we don't spread your data across multiple regions. If you use Yoseri from outside the United States, your data is transferred to and stored in the US; where required, we rely on appropriate safeguards (such as standard contractual clauses) to protect it.

10. Changes to this policy

We may update this policy from time to time. Material changes will be announced on this page with a new "last updated" date and, where appropriate, by email. Continued use of the Service after an update constitutes acceptance of the revised policy.

11. Contact

For privacy questions or data requests, contact support@yoseri.com. For anything else, reach us at contact@yoseri.com.