Privacy Policy

1. What data we collect

We collect different information depending on which parts of StewReads you use.

Account information

When you sign in with Google or Apple, we store the account information needed to identify and secure your StewReads account: your email address, name, profile image URL when provided, and provider identity IDs such as your Google or Apple user ID.

Preferences and settings

If you set them, we store delivery preferences such as your delivery email, Kindle email, interests, auto-send setting, save-to-library setting, and private podcast feed token. These settings control how StewReads saves and delivers your content, and may be used to personalize product behavior.

Saved content and generated files

StewReads can save ebooks, briefs, coding contexts, source markdown, artifact metadata, generated files, and artifact versions. Saved metadata can include title, content type, model name or ID, status, creation time, repository identity for repo-scoped contexts, storage references, file hashes, and file sizes.

If audiobook generation is enabled for a saved artifact, we may also store generated MP3 files and audio metadata such as audio status, voice, language, duration, errors, and completion timestamps.

Integrations and connected clients

When you connect StewReads to an AI client through MCP or OAuth, we store client registration and token records needed to authorize that connection. These records can include OAuth client names, client IDs, redirect URIs, scopes, token hashes, expiration times, revocation status, and last-used timestamps.

If you connect Google Drive backup, we store the Drive account details needed to operate that feature: Drive email, account ID, granted scopes, encrypted refresh token, folder ID, folder URL, backup run status, file counts, errors, and Drive file mappings.

Operational records

We keep operational records that help run the service: sessions, refresh token hashes, IP address and user-agent metadata for sessions, generation jobs, generation events, delivery attempts, feedback, share links, and service logs used for debugging, security, reliability, and abuse prevention.

Aggregate website analytics

StewReads may use privacy-first website analytics to understand aggregate visits, pageviews, referrers, acquisition links, approximate geography, device/browser type, and broad engagement with public pages. We do not send saved library content, generated text, prompts, account emails, OAuth tokens, refresh tokens, or artifact IDs to the analytics provider.

2. How we use your data

We use your data to provide the StewReads features you ask for:

• Authenticate your account and keep sessions secure.
• Generate ebooks, briefs, coding contexts, and audiobooks from content you provide.
• Save your library when saving is enabled or when you explicitly save content.
• Convert content into EPUB, PDF, MP3, podcast feed, or markdown forms.
• Deliver generated ebooks or links to user-provided email addresses, including Kindle addresses when you configure one.
• Run MCP and OAuth connections so authorized AI clients can save, list, or fetch your StewReads artifacts.
• Back up selected saved artifacts to your Google Drive account if you connect that feature.
• Understand aggregate website usage so we can improve public pages and onboarding.
• Process feedback, troubleshoot failures, prevent abuse, and improve reliability.

We do not sell your personal information, use your saved library for advertising, include an advertising SDK in the mobile app, or make your library public unless you take an action that creates a share or delivery link.

3. What we share and with whom

We share information only as needed to operate StewReads, complete actions you request, comply with the law, or protect the service.

AI and text-to-speech providers

Depending on the feature and configuration, content may be sent to AI or TTS providers used for ebook generation, language detection, or audiobook narration. Current code paths include integrations with Gemini, Anthropic Claude, OpenRouter-hosted models, OpenAI audio services, Google Cloud text-to-speech, and allowlisted dev-only audiobook experiments that can call ElevenLabs.

Cloud storage and infrastructure

Saved source files, generated artifacts, audiobook files, and metadata are stored in private Google Cloud Storage when artifact storage is configured. StewReads also uses cloud-hosted API services and background jobs to process files only for the requested product functionality.

Email, Kindle, and delivery destinations

When you request delivery, StewReads sends the generated file or link through configured SMTP/email delivery. The recipient address is one you provide or save, such as a regular email address or a Kindle address. Once delivered, copies in your inbox, Kindle library, or another destination you control are outside StewReads storage.

Google, Apple, and Google Drive

Google and Apple provide sign-in identity information when you use those sign-in methods. If you connect Google Drive backup, StewReads uses Google Drive APIs to create or update your StewReads backup folder and upload selected saved content to your own Drive account.

Website analytics

If enabled, StewReads uses Plausible Analytics for aggregate website metrics. Analytics events are limited to page and interaction information such as sanitized page paths, public call-to-action clicks, referrers, acquisition query parameters, approximate location, and browser/device metadata. StewReads does not use analytics for advertising retargeting and does not send personal library content to Plausible.

4. How long we keep your data

In general, StewReads keeps account records, preferences, saved artifacts, coding contexts, audiobook files, Google Drive connection records, and OAuth connection records until you delete the item, disconnect the integration, or delete your account.

EPUB and PDF exports are generated when needed and are not kept as saved library content unless they become part of a saved artifact or backup workflow. Share links expire according to their configured expiration time or can be revoked. Operational logs, delivery records, feedback, and security records may be kept for reliability, support, abuse prevention, legal compliance, and debugging.

5. How to control or delete your data

You can control your data from StewReads itself:

• View and update your profile, preferences, delivery email, Kindle email, interests, auto-send, and save-to-library setting in Profile.
• Delete saved reads, briefs, or coding contexts from your library.
• Disable future ebook saving in Profile if you do not want new generated ebooks saved to your library by default.
• Disconnect Google Drive backup or disable your private podcast feed from Profile.
• Follow the data deletion instructions at stewreads.com/delete-data.
• Permanently delete your StewReads account from Profile by confirming with DELETE, or follow the account deletion instructions at stewreads.com/delete-account.

Account deletion removes StewReads-owned account data and stored artifacts. It does not remove files already delivered to Kindle, email inboxes, downloaded devices, or your own Google Drive.

6. Security

StewReads uses HTTPS/TLS for app and API traffic. Authentication uses OAuth and JWT-based sessions with expiration. OAuth and refresh tokens are stored as hashes where appropriate, Google Drive refresh tokens are encrypted before storage, and saved artifacts live in private Google Cloud Storage. No internet service can be perfectly secure, so be thoughtful about what you choose to send to any online product.

7. Children

StewReads is not intended for children under 13, and we do not knowingly collect personal information from children under 13.

8. Changes to this policy

StewReads will update this page when the product or data practices change in a meaningful way. The date at the top tells you when this policy was last updated.

9. Contact

For questions about this Privacy Policy or requests about your data, email contact@stewreads.com.