Legal

Privacy Policy

Last updated: July 14, 2026

The short version

Kasten only ever sees what you explicitly forward to your inbox. Nothing else. We do not read your conversations, access your contacts, or touch anything in your messaging apps beyond the specific messages you choose to send us. We do not sell your data. Ever.

What we collect

Waitlist sign-up: your email address, used only to confirm your spot and notify you when Kasten launches.

Content you forward: the specific links, text, images, and files you choose to send to your Kasten inbox. This is how the product works: we receive only what you explicitly send us.

Standard server logs: IP address, request timestamps, and browser user-agent, retained briefly for security and reliability purposes.

What we do not collect

Kasten does not read your other conversations. It has no access to your contact list, camera roll, or any other data inside your messaging apps. The product is architected so that it is structurally impossible for Kasten to access anything beyond what you explicitly forward.

We do not use advertising trackers. We do not build profiles for ad targeting. We do not share your data with data brokers.

How we use your information

We use your email to send your waitlist confirmation and to communicate Kasten's launch. We use the content you forward solely to power your inbox: organizing, tagging, summarizing, and making it searchable for you. We do not use your content to train AI models without your explicit consent.

Data security

Your data is encrypted at rest and in transit. We use industry-standard security practices to protect your information against unauthorized access, disclosure, or loss.

Your rights

You can delete any item from your Kasten inbox at any time. You can delete your entire account and all associated data at any time. To request deletion, export, or any other data right, email us at heykastenai@gmail.com.

If you are a resident of California or the European Economic Area, you may have additional rights under applicable law. Contact us at the address above to exercise them.

Changes to this policy

We will update this policy as the product evolves. Material changes will be communicated by email to registered users before they take effect.

Contact

Questions or concerns about this policy? heykastenai@gmail.com