Privacy

Last updated: 19 May 2026

This is a minimal privacy notice for the beta version of Metrics Tree Studio (the “Service”), operated as a sole proprietorship from Spain.

What we store

• Email (hashed). We never store your email in readable form — only an irreversible hash. We use it solely to send you the one-time sign-in code.
• Your documents. The metric trees you create are stored on our server, tied to your account.
• Session cookie. A single cookie keeps you signed in. No tracking, no analytics, no third-party scripts.

What we don't do

• We don't sell or share your data with anyone.
• We don't use third-party trackers or advertising cookies.
• We don't read or analyse the content of your documents.

Your rights

You can delete your account at any time. This permanently removes your email hash and all your documents from our database. To delete your account, sign in and use the “Delete account” option, or write to .

Contact

Questions? Write to .