Privacy policy

Last updated 2026-07-19.

Knurl collects no personal data. There is no account to create, no analytics SDK, and no tracking of any kind, in the app or on this site's product pages. This site sets no cookies, runs no analytics, and makes no external requests of its own.

The app has exactly one kind of network traffic: UDP telemetry sent directly between your device and your console, over your own local network. Knurl talks straight to the console, there is no bridge, no companion PC, and no server operated by us in between. Nothing about your driving, your car setups, or your device is sent anywhere else.

Because the app collects nothing, its App Store privacy label is "Data Not Collected." No data leaves your device, so there is nothing for Sigilark to sell, share, or lose.

The one-time lifetime unlock purchase is handled entirely by Apple through the App Store. Knurl never sees your payment details, and Sigilark receives only what Apple reports for a completed purchase.

Questions about this policy? Write to privacy@sigilark.com. For anything else about Knurl, write to support@sigilark.com.