Privacy

Your information stays yours.

Last updated August 22, 2026.

Information we collect

When you preorder, Stripe collects the contact, payment, billing, and shipping details required to process and fulfill your order. Cylumi receives order and fulfillment information from Stripe, but does not receive your full card number.

The Cylumi companion app does not require an account and does not collect personal data, analytics, advertising identifiers, location, or audio recordings. Bluetooth is used locally to discover and control your Cylumi necklace. The app connects to Cylumi's public update service only to check for and download signed necklace firmware.

How we use it

We use order information to process payment, provide updates, deliver your necklace, prevent fraud, and support your purchase. We do not sell personal information.

Audio privacy

The necklace analyzes sound on the device to drive its visuals. The iPhone app does not request microphone access, and neither the necklace nor the app saves or uploads ambient audio.

Questions

Email support@cylumi.com for privacy or data requests.