Privacy

Privacy notice

Slipratio is operated by the Slipratio project. This notice explains the data used to run the simulator and respond to feedback.

What we collect

You can use the public simulator without an account. If you sign in, Supabase Auth stores your email address and session data so you can save custom cars, dyno uploads, and garage records. If you upload a dyno CSV, Slipratio stores the original file in Cloudflare R2 and the normalized curve plus source metadata in Supabase.

Bad-sim reports may include the simulation URL, decoded setup parameters, your message, your browser user agent, and an optional contact email. If you are signed in when sending a report, the report may be linked to your account for triage.

Analytics and infrastructure

Slipratio runs on Cloudflare Workers/OpenNext, Cloudflare R2, and Supabase. Sentry, Plausible, Google Analytics, and advertising trackers are not part of the service.

Cookies

Supabase Auth uses session cookies for magic-link sign-in. Cloudflare may set infrastructure cookies needed to serve and protect the site. Slipratio does not use third-party advertising cookies.

How we use data

Data is used to run simulations, save user-created cars and dynos, diagnose inaccurate vehicle results, maintain security, and understand whether the service is working. User-uploaded dynos are not turned into public stock-vehicle Pro dynos unless the source category and licensing posture allow it.

Contact

General feedback goes through the contact form. Privacy, terms, or legal questions go to legal@slipratio.app.