Privacy Policy

Sigma Studio operates UIX Design System. We collect as little as possible.

What we store

Your license key, the email and name Paddle shares with us for your purchase, and, for each device you activate, a generic label and the activation date — never your name or any file content.
If you create an account: your email, your name, your Google account ID if you sign in with Google, your sign-in sessions, and the API keys you create for the CLI and AI agents.
Design systems you save to your account, and what you publish from them (a hosted stylesheet or docs page). Work in the Figma plugin stays in your Figma file and on your device unless you save or sync it.
If you join the newsletter: your email and the date you confirmed it.
IP addresses, briefly, to limit abuse. These counters are deleted within about an hour.

The site runs on Cloudflare. Sign-in and confirmation emails are sent through Resend.

Payments are processed by Paddle.com as Merchant of Record. We never see your card details. See Paddle’s privacy policy at paddle.com/legal/privacy.

AI and GitHub features send data only to the provider you choose, using your own API key or token.

Ask us to access or delete your data at support@useuix.com.