Privacy Policy

Effective Date: October 13, 2026

Lucid Adaptive Learning LLC, doing business as Lucid Learner ("Lucid," "we," "our," or "us"), respects your privacy. This Privacy Policy explains how we collect, use, disclose, and protect your information when you use our adaptive learning platform at lucidlearner.com (the "Service").

By using the Service, you agree to the collection and use of information in accordance with this policy.

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1. Information We Collect

1.1 Information You Provide

Account Information:

• Email address
• Password (encrypted)
• Account preferences and settings

Study Materials:

• Documents you upload (PDFs, images, text files)
• Subject, class, and course information you enter
• Textbook index data you upload

Learning Data:

• Questions answered and responses given
• Study session history
• Performance metrics and mastery levels

1.2 Information Collected Automatically

Usage Data:

• Features used and actions taken
• Session duration and frequency
• Error logs and performance data
• How you found us: the name of the website that sent you (for example, a search engine) and any campaign tags in the link you followed, saved with your account when you sign up. We keep the website's name, not the full address of the page you came from.

Device Information:

• Browser type and version
• Device type (mobile, desktop)
• Operating system

Email Link Clicks: When you click a link in an email from us, our email provider tells us the time of the click, the IP address and browser it came from, and we look up the approximate city and network of that IP address. We use this only to tell real clicks apart from email security systems that test links automatically, and to know whether our emails reach you. To have these records deleted, email support@lucidlearner.com.

Note: We do NOT collect:

• Precise location data
• Contacts or address book
• Data from other apps on your device

2. How We Use Your Information

We use your information to:

• Provide the Service: Process your documents, generate questions, track progress
• Personalize Learning: Adapt question difficulty based on your performance
• Improve the Service: Analyze usage patterns to enhance features
• Communicate: Send account-related emails (verification, password reset, important updates)
• Support: Respond to your questions and requests
• Security: Detect and prevent fraud or abuse

We do NOT:

• Sell your personal information
• Use your data for advertising
• Share your original uploaded documents with other users

We may aggregate or anonymize AI-generated questions and learning insights derived from user content to improve the Service and provide study materials to other users. See our Terms of Service Section 5.4 for details.

3. AI Processing

3.1 How AI Is Used

Your uploaded documents are processed by AI to:

• Extract topics and subtopics
• Generate practice questions
• Provide explanations with source references

3.2 AI Data Handling

• Your documents are sent to Google's Gemini API, which reads them and returns the facts, topics and questions we build your study material from. The in-app tutor and "Explain more" also use Gemini.
• Illustrations are generated by OpenAI's image API from short descriptions of a topic, not from your document.
• Text in photographed or scanned pages may be read with Google Cloud Vision (OCR).
• These providers process the data to return results to us, under their API terms (linked in Section 5). We use Google's Gemini API on a paid plan, under which Google does not use your prompts or its responses to improve its products.
• We do not use your content to train AI models.

3.3 AI-Generated Content

Questions, explanations and tutor replies are generated by AI and are labelled as such in the app. They can be wrong. Check anything important against your own course materials.

4. Data Storage and Security

4.1 Where Data Is Stored

• Cloud Database: Supabase (hosted on AWS)
• Region: United States

4.2 Security Measures

We implement industry-standard security measures including:

• Encryption in transit (HTTPS/TLS)
• Encryption at rest for stored data
• Secure password hashing
• Row-level security for database access
• Regular security updates

4.3 Data Retention

• Active Accounts: Data retained while your account is active
• Deleted Accounts: When you delete your account in Settings, your account, files and study data are deleted immediately. Copies may remain in our database provider's encrypted backups until those backups are overwritten on their normal schedule, and are not restored except to recover from a system failure.
• Deletion Records: We keep a record that a deletion happened (its date and how many files were removed), with no information that identifies you.
• Payment Records: Stripe keeps billing records it is required to keep by law, under its own policy.

5. Third-Party Services

We use the following third-party services:

Service	Purpose	Privacy Policy
Supabase	Database, authentication	supabase.com/privacy
Google (Gemini API, Cloud Vision, Cloud Run)	Reading documents, generating questions and explanations, OCR, running our processing servers	cloud.google.com/terms/cloud-privacy-notice
OpenAI	Generating illustrations	openai.com/policies/privacy-policy
Stripe	Payments (we never see or store your card number)	stripe.com/privacy
Resend	Sending account and study emails	resend.com/legal/privacy-policy
IPinfo	Looking up the approximate city and network of an IP address when an email link is clicked	ipinfo.io/privacy-policy
Vercel	Website hosting	vercel.com/legal/privacy-policy

These services have their own privacy policies governing their use of data.

6. Data Sharing

We do NOT sell your personal information.

We may share information only in these circumstances:

• Service Providers: Third parties that help us operate the Service (listed above)
• Legal Requirements: If required by law, court order, or government request
• Safety: To protect the rights, safety, or property of Lucid Learner, our users, or the public
• Business Transfers: In connection with a merger, acquisition, or sale of assets (you would be notified)

7. Your Rights and Choices

7.1 Access and Export

You can download a copy of everything we store about you at any time: Settings → Your data → Download my data. You get one machine-readable (JSON) file with your account, study materials, questions, history and progress, plus download links for your uploaded files.

7.2 Correction

You can update your account information and document metadata at any time.

7.3 Deletion

You can delete individual documents or study sessions, or your entire account: Settings → Your data → Delete my account. Deleting your account cancels any subscription immediately and deletes your account, files and study data straight away (see Section 4.3 for backups).

7.4 Communication Preferences

The weekly study digest is off unless you ask for it when you sign up, and every digest has a one-click unsubscribe link. Emails about your account, your uploads and billing are part of the Service and are always sent.

7.5 Do Not Track

We do not currently respond to "Do Not Track" browser signals.

8. Children's Privacy

8.1 Age Requirement

The Service is intended for users aged 13 and older.

8.2 Parental Consent

Users under 18 must have parental permission. Parents may contact us to:

• Review their child's information
• Request deletion of their child's data
• Withdraw consent for data collection

8.3 COPPA Compliance

We do not knowingly collect personal information from children under 13. If we learn we have collected such information, we will delete it promptly.

8.4 Educational Use

If the Service is used in an educational setting, the school or teacher is responsible for obtaining necessary parental consents.

9. International Users

The Service is operated in the United States, and your information is processed there. If you are in the European Economic Area, the UK or Switzerland, we rely on the following lawful bases under the GDPR:

• Contract: to provide the Service you signed up for (your account, documents, questions and progress)
• Consent: for the weekly study digest, which you can withdraw at any time with the unsubscribe link
• Legitimate interests: to keep the Service secure and to fix and improve it

Our service providers offer data processing terms, including Standard Contractual Clauses, for transfers out of these regions. You have the rights of access, rectification, erasure, restriction, portability and objection; most can be exercised yourself in Settings, and the rest by contacting us. You may also complain to your local data protection authority.

10. California Privacy Rights

California residents have additional rights under the CCPA:

• Right to Know: What personal information we collect and how it's used
• Right to Delete: Delete your account yourself in Settings, or ask us to
• Right to Access: Download your data yourself in Settings
• Right to Opt-Out: We do not sell personal information
• Non-Discrimination: We will not discriminate against you for exercising these rights

To exercise these rights, contact us at support@lucidlearner.com.

11. Florida Privacy Rights

Florida residents may have additional rights under applicable Florida law. To exercise any privacy rights, contact us at support@lucidlearner.com.

12. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by:

• Posting the new policy on this page
• Updating the "Effective Date"
• Sending an email notification for significant changes

Your continued use after changes constitutes acceptance of the updated policy.

13. Contact Us

If you have questions about this Privacy Policy or our data practices, contact us at:

Lucid Adaptive Learning LLC (doing business as Lucid Learner)
7901 4th St N, Ste 300, St. Petersburg, FL 33702
Email: support@lucidlearner.com
Website: https://lucidlearner.com

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Last updated: October 6, 2026