Last Updated: November 30, 2025
LLD Problems ("us", "we", or "our") operates the lldproblems.com website (the "Service"). This page informs you of our policies regarding the collection, use, and disclosure of personal data when you use our Service and the choices you have associated with that data.
We may collect the following personal data from you when you use the Website or the Product:
We may also automatically collect certain information about your device and usage of the Website or the Product, such as your IP address, browser type, operating system, access times, and pages visited.
Additionally, when you engage in AI-driven features (like generating "Core Entities" or viewing interview frequency data), we may process related interaction data through AI platforms to provide these services.
We use your personal data for the following purposes:
We may share your personal data with third parties in the following circumstances:
We take reasonable and appropriate measures to protect your personal data from loss, misuse, unauthorized access, disclosure, alteration, and destruction. We use secure providers like NextAuth for authentication and Stripe for payments to ensure your sensitive data is handled with industry-standard security.
You have the following rights with respect to your personal data:
We use cookies and similar technologies (such as web beacons and pixels) to collect information about your usage of the Website and the Product, to remember your preferences (e.g., login session), and to personalize your experience.
You can set your browser to refuse all cookies or to indicate when a cookie is being sent. However, some features of the Website (like staying logged in) may not function properly without cookies.
We retain your personal data for as long as necessary to fulfill the purposes for which we collected it, including for the purposes of satisfying any legal, accounting, or reporting requirements. If you delete your account, your personal data is removed from our active databases.
If you have any questions or concerns about this Privacy Policy or our privacy practices, please contact us at lldproblems@gmail.com.