Privacy Policy

Effective Date: March 11, 2026

Last Updated: October 15, 2026

DistilBook ("we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our platform, including our website, applications, and services (collectively, the "Service").

1. Information We Collect

1.1 Information You Provide

• Account Information: Name, email address, and password when you create an account
• Profile Information: Optional details such as profile picture and learning preferences
• Payment Information: Billing details processed through secure third-party payment processors
• Communications: Messages and feedback you send to us or through the Service
• Voice Recordings and Cloned Voices: If you use voice cloning (see Section 1.4), the voice sample you record or upload, and the name and language you give your voice

1.2 Information Collected Automatically

• Usage Data: Pages visited, videos watched, courses accessed, time spent, and learning progress
• Device Information: Browser type, operating system, device type, and screen resolution
• Log Data: IP address, access times, referring URLs, and pages viewed
• Cookies and Similar Technologies: We use cookies, local storage, and similar technologies to enhance your experience

1.3 Information from Third Parties

• Authentication Providers: If you sign in using Google or other third-party services, we receive basic profile information as authorized by you
• Analytics Providers: We may receive aggregated usage data from analytics services

1.4 Voice Cloning

Voice cloning lets you create an AI version of your own voice and use it to narrate your videos. It is available only on eligible plans and only to users aged 18 or older. Here is how it handles your data:

• Your recording: You record or upload a sample of your voice (up to 5 minutes; we use at most the first 3 minutes). We convert it and send it directly to our voice provider, ElevenLabs, which creates the voice. We do not keep your recording: the copy on our servers is deleted as soon as the voice has been created or the attempt fails.
• What we keep: A reference ID for your voice at ElevenLabs, the name and language you chose, the plan you were on when you created it, the length of your sample, and a record of the consent you gave (the version of the consent text and when you agreed). We keep this so we can show your voices, apply plan limits, and prove that you agreed.
• Narration: When you choose your voice for a video, we send that video's narration script to ElevenLabs to generate the audio. The resulting audio becomes part of your video like any other narration.
• No identification: We use your voice only to generate narration you ask for. We do not use it to identify you, verify your identity, or build a profile of you, and we do not use your voice to train our own models.

Your voice data can be sensitive personal data, and in some places it may count as biometric data. We process it only on the basis of the explicit consent you give before you record, and you can withdraw that consent at any time by deleting the voice (see Sections 5 and 6).

2. How We Use Your Information

We use the information we collect to:

• Provide and improve the Service: Deliver courses, track progress, and personalize your learning experience
• Communicate with you: Send account notifications, respond to inquiries, and provide customer support
• Process transactions: Handle subscriptions and payments
• Ensure security: Detect and prevent fraud, abuse, and unauthorized access
• Analyze usage: Understand how users interact with the Service to improve features and content
• Comply with legal obligations: Meet applicable legal and regulatory requirements

3. How We Share Your Information

We do not sell your personal information. We may share your information in these circumstances:

3.1 Service Providers

We share information with trusted third-party service providers who assist us in operating the Service, including:

• Cloud hosting and infrastructure providers
• AI model providers, such as OpenAI, that process the documents and text you submit in order to write narration scripts, create images and generate voiceovers
• ElevenLabs, our voice provider, which creates cloned voices from the recordings you submit, generates speech for your narration and aligns narration audio with on-screen text (see Section 3.6)
• Payment processors
• Analytics and monitoring services
• Customer support tools

3.2 Legal Requirements

We may disclose information if required by law, regulation, legal process, or governmental request.

3.3 Business Transfers

In the event of a merger, acquisition, or sale of assets, your information may be transferred as part of the transaction.

3.4 With Your Consent

We may share information for other purposes with your explicit consent.

3.5 Third-Party AI Assistants and Integrations

You can connect DistilBook to third-party AI assistants and developer tools, for example

ChatGPT by OpenAI, through our hosted MCP server or an API key you generate in your account settings. This

happens only when you choose to connect one.

While a connection is active, that tool can read:

• your account status, including credit balance, plan, and renewal date
• your list of videos, with their titles and generation status
• the narration scripts generated from the documents you upload
• temporary download links for your finished videos
• the slide images belonging to your videos

It can also act on your behalf: creating, editing, rendering, publishing, and deleting

videos in your account.

We do not send your information to any assistant or tool you have not connected. You can

revoke access at any time by removing the connection or deleting the API key in your

account settings. Once your information reaches a third-party assistant, that provider's

own privacy policy also applies to how they handle it, so review the privacy policy of any

tool you connect.

3.6 ElevenLabs (Voice Cloning and Speech)

When you use voice cloning, your recording, the resulting voice, and the narration scripts you voice with it are processed by ElevenLabs, Inc. and its affiliates and subcontractors. By using voice cloning, you grant ElevenLabs and its affiliates and subcontractors a non-exclusive right to process and use this data to provide and support their services. ElevenLabs handles this data under its own terms and its Privacy Policy, and it may keep data related to your voice for its own retention period (its privacy policy currently states up to 3 years after your last interaction with ElevenLabs), even after we have deleted the voice from your DistilBook account. ElevenLabs may process your data outside your country, including in the United States.

4. Data Security

We implement industry-standard security measures to protect your information, including:

• Encryption of data in transit (TLS/SSL) and at rest
• Regular security audits and vulnerability assessments
• Access controls and authentication mechanisms
• Secure data storage with reputable cloud providers

While we strive to protect your information, no method of transmission or storage is 100% secure.

5. Data Retention

We retain your information for as long as your account is active or as needed to provide the Service. We may also retain information as necessary to:

• Comply with legal obligations
• Resolve disputes
• Enforce our agreements
• Maintain business records

When you delete your account, we delete your personal information, uploaded documents and videos within 30 days. You can also request deletion by emailing support@distilbook.com, and we will complete it within 30 days of your request. We keep information longer only where the law requires it.

Cloned voices. We keep a cloned voice until one of the following happens, and then we delete it from your account and ask ElevenLabs to delete it:

• You delete it on the My Voices page (immediately)
• You delete your account (immediately)
• Your paid plan ends and your account moves to the free plan, for example because you cancel. The voice is scheduled for deletion 30 days later, and is kept if you return to a paid plan within those 30 days

If you move to a lower paid plan than the one you created a voice on, the voice is locked rather than deleted: it is kept, but can't be used until you return to that plan or a higher one. We delete your voice recording as soon as the voice has been created, as described in Section 1.4. The consent record for a deleted voice is kept as long as we may need it to show that the voice was created with your permission. Data that ElevenLabs keeps under its own policy is described in Section 3.6.

After account deletion, we may retain anonymized and aggregated data for analytical purposes.

6. Your Rights and Choices

Depending on your jurisdiction, you may have the following rights:

• Access: Request a copy of the personal information we hold about you
• Correction: Request correction of inaccurate or incomplete information
• Deletion: Request deletion of your personal information
• Portability: Request your data in a portable format
• Opt-Out: Opt out of marketing communications at any time
• Withdraw Consent: Withdraw previously given consent for data processing
• Delete Cloned Voices: Delete any of your cloned voices at any time on the My Voices page. This withdraws your consent for that voice

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

7. Cookies and Tracking Technologies

We use the following types of cookies:

You can manage cookie preferences through your browser settings. Disabling certain cookies may affect the functionality of the Service.

8. Children's Privacy

The Service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If we become aware that we have collected such information, we will take steps to delete it promptly.

Voice cloning is available only to users aged 18 or older. Voice recordings of anyone under 18 must not be submitted, and we will delete any voice we learn was created from one.

9. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. We ensure appropriate safeguards are in place to protect your information in accordance with applicable data protection laws.

10. Third-Party Links

The Service may contain links to third-party websites or services. We are not responsible for the privacy practices of these third parties. We encourage you to review their privacy policies.

11. Changes to This Policy

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

• Posting the updated policy on our website
• Updating the "Last Updated" date
• Sending you a notification where appropriate

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

12. Contact Us

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

• Email: ajith@distilbook.com

• Website: distilbook.com

This Privacy Policy is part of our Terms of Service.