Privacy

Short, because we collect almost nothing.

The calculators run entirely in your browser. Nothing you enter — stakes, odds, profits — is sent to us or stored anywhere. There are no accounts and no sign-up.

Analytics. We use standard, privacy-respecting page analytics to see which calculators people use. No advertising trackers, and your data is not sold.

Who we are. This site is operated by Sports Trading OS (sportstradingos.com), an educational publisher. Questions: hello@sportstradingos.co.uk.

18+. This site concerns betting-exchange mathematics and is intended for adults. If gambling is causing you harm, see our responsible gambling page for free, confidential support services.