Legal
Privacy Policy
Last updated: May 20, 2026
readleaf is a personal reading tool. We built it to be simple and trustworthy. This policy explains what data we collect, why, and what we never do with it.
The short version: we collect only what's necessary to deliver articles to your Kindle. We don't sell your data, track your reading habits, or share your information with third parties for advertising.
What we collect
When you use readleaf, we collect:
- Your email address — when you join the waitlist or create an account. Used to communicate with you about readleaf.
- Your Kindle or Kobo delivery address — stored locally in your browser via the Chrome extension. We use it solely to deliver articles to your device.
- Article URLs — the URLs of articles you choose to send. Used only to fetch and process the article content for delivery. Not stored after delivery.
- Basic usage data — number of articles sent per month, used only to enforce free tier limits. Not tied to individual articles.
What we never collect
- Your reading history or which articles you've read
- Browsing history or activity outside of readleaf
- Payment information (handled entirely by Stripe — we never see your card details)
- Personal information beyond what's listed above
The Chrome extension
The readleaf Chrome extension requests access to the current tab in order to read the page content and URL when you click "Send to Kindle." It does not run in the background, does not track your browsing, and does not transmit any data unless you explicitly click the send button.
Your Kindle email address is stored locally in your browser using Chrome's storage API. It is sent to our servers only when you send an article, for the purpose of delivery.
How we use your data
- To deliver articles to your Kindle or Kobo device
- To enforce free tier usage limits
- To send you product updates if you've joined the waitlist (you can unsubscribe at any time)
- To improve the service (aggregate, anonymized usage patterns only)
Third-party services
readleaf uses the following third-party services:
- Resend — email delivery service. Used to send your articles to your @kindle.com or Kobo address. Resend privacy policy
- Supabase — database and authentication. Stores your account information securely. Supabase privacy policy
- Stripe — payment processing. Handles all billing. We never see your payment details. Stripe privacy policy
- Anthropic Claude API — AI summarization. Article text is sent to generate the TL;DR summary. Not stored or used for training. Anthropic privacy policy
Data retention
Article content is processed in memory and not stored after delivery. Your account information is retained as long as you have an active account. You can request deletion of your data at any time by emailing us.
Your rights
You have the right to:
- Access the personal data we hold about you
- Request correction of inaccurate data
- Request deletion of your data
- Unsubscribe from any communications at any time
Contact
Questions about this privacy policy or your data? Email us at hello@readleaf.io.
Changes to this policy
We'll update this page if our practices change and note the date at the top. We won't make material changes without notifying active users by email.