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Privacy Policy

Last updated: July 2026

Overview

ByteLetters ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our Chrome extension and related services.

Information We Collect

When you use ByteLetters, we collect the following information:

  • Email address — Collected via Google Sign-In for account authentication
  • Profile details — Your name and birth date, used to personalize the new tab experience
  • User preferences — Your settings, newsletter subscriptions, and saved insights
  • Activity — Which insights have been shown to you, so we avoid repeating content and can tailor what you see

Where Our Content Comes From

ByteLetters shows curated insights drawn from publicly available newsletter archives that our team selects. We do this centrally; you do not forward emails to us, and we do not read your inbox. Every user chooses which of these curated sources to follow from within the extension.

How We Use Your Information

We use your information solely to provide and improve ByteLetters:

  • Authenticate your account and enable sign-in
  • Show you insights from the curated newsletters you follow
  • Sync your subscriptions, saved insights, and preferences across devices
  • Avoid showing you the same insight twice and personalize your feed

What We Don't Do

We respect your privacy and commit to the following:

  • We do not sell your personal data to third parties
  • We do not track your browsing activity outside the extension
  • We do not read your email or require access to your inbox
  • We do not use advertising or analytics trackers
  • We do not use your data for AI model training

AI Processing

The curated newsletter content is processed using Anthropic Claude to extract bite-sized insights. This processing is done solely to provide the ByteLetters service and operates on the newsletter source material, not on your personal data. This content is not used to train the AI provider's models.

Data Storage & Security

Your data is stored securely:

  • Data is stored on Supabase (PostgreSQL) with encryption at rest
  • All connections use HTTPS encryption
  • Authentication is handled via Google OAuth 2.0
  • We follow industry-standard security practices

Data Retention

We retain your account data for as long as your account is active. If you delete your account, your profile, subscriptions, saved insights, and activity history are removed.

Your Rights & Data Deletion

You have full control over your data:

  • You can view all your saved bytes in the extension
  • You can delete individual bytes at any time
  • You can delete your entire account and all associated data from the extension settings

To delete your account: Open ByteLetters → Settings (gear icon) → Delete Account

Third-Party Services

ByteLetters uses the following third-party services:

  • Google OAuth — For authentication
  • Supabase — For data storage
  • Anthropic Claude — For AI text processing of curated newsletter content

Children's Privacy

ByteLetters is not intended for children under 13. We do not knowingly collect information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify users of any material changes by updating the "Last updated" date and, for significant changes, by email.

Contact Us

If you have any questions about this Privacy Policy or your data, please contact us at:

[email protected]