Lttr Privacy Policy
Last updated: May 2026
The short version: Your mail is yours. We read it to help you understand it. We do not sell it, share it, or use it to train AI models. You can delete everything at any time.
What we collect
When you scan or upload a document, Lttr stores the image and the extracted text in your account. We also collect your email address and the date and time of your activity. We do not collect payment information. Lttr is free.
How we use your data
We use your documents solely to generate summaries, extract deadlines, and answer your questions about your mail. That is it. We do not use your documents to train AI models. We do not sell your data to advertisers. We do not share your data with third parties except where required by law.
Who can see your documents
Only you can see your documents. Lttr staff do not have routine access to your document contents. In the rare event that a technical issue requires us to access your account for support, we will notify you first and only do so with your explicit permission.
If you have enabled Caregiver Access, the person you invited can see your documents only at the permission level you set. You can revoke their access at any time from Settings.
How we protect your data
Your documents are encrypted using AES-256 encryption at rest and TLS 1.3 in transit. We use Amazon Web Services (AWS) infrastructure hosted in the United States. We do not store documents on devices or local servers.
How long we keep your data
Your documents remain in your account until you delete them. You can delete individual documents or your entire account at any time from the Settings page. When you delete your account, all documents and associated data are permanently removed within 30 days.
Third-party services
Lttr uses AI processing services to extract and summarise document content. Document content sent for processing is not retained by those services and is not used for model training under our agreements. We use Stripe for future payment processing. We do not share document content with Stripe.
Your rights
You have the right to access all data we hold about you, correct any inaccurate information, delete your account and all associated data, and export your documents at any time. To exercise any of these rights, email us at privacy@getlttr.com.
Contact
Questions about this policy: privacy@getlttr.com
Lttr · getlttr.com