Privacy Policy

This Privacy Policy describes how LucentSkill ("we", "us", or "our") collects, uses, and protects your information when you use our Service. We are committed to protecting your privacy and being transparent about our practices.

We collect the following types of information:

• Account information: your email address, display name, and password (stored as a one-way hash, never in plain text).
• Learning activity: your module progress, earned experience points (XP), and completion status.
• Exercise submissions: the text you submit for AI-graded exercises, along with the resulting scores and feedback.

We use your information to:

• Provide, operate, and maintain the Service.
• Track your learning progress and award XP and badges.
• Grade exercise submissions and provide feedback.
• Authenticate your account and keep it secure.
• Improve the Service and its content.

When you submit an exercise for grading, the text you submit is processed by third-party AI service providers solely for the purpose of generating a score and feedback. These providers process your submission to perform the grading and do not use your content for any other purpose under our agreements with them.

We do not sell your personal information. We only share your exercise submissions with these AI providers to the extent necessary to deliver the grading feature you requested.

Your information is stored in a secure database with encryption in transit. Passwords are stored as salted one-way hashes using bcrypt, meaning we cannot read them. We use reasonable administrative, technical, and physical safeguards to protect your information.

No method of transmission or storage is completely secure. While we strive to protect your data, we cannot guarantee absolute security.

We use a single essential session cookie to keep you signed in. This cookie is strictly necessary for the Service to function and does not track you across other websites. We do not use advertising or third-party tracking cookies.

Depending on your jurisdiction (including the GDPR and CCPA), you may have the right to:

• Access the personal information we hold about you.
• Request correction of inaccurate information.
• Request deletion of your account and associated data.
• Export your data in a portable format.
• Withdraw consent or object to certain processing.

To exercise any of these rights, contact us using the details in Section 10.

The Service is not intended for individuals under the age of 18. We do not knowingly collect personal information from children. If we become aware that a child has provided us with personal information, we will delete it.

We may update this Privacy Policy from time to time. Changes become effective upon posting to this page. We will update the "Last updated" date above to reflect any changes.

If you have questions about this Privacy Policy or wish to exercise your rights, contact us at privacy@lucentskill.com.