Last updated: 14 August 2026
Short version: there are no accounts, and the trainer runs entirely in your browser. Nothing you do with the sails is sent anywhere.
The whole simulation — the physics, the boats, the 3D view — is JavaScript running locally. Your trim settings, wind conditions and boat choice never leave your browser and are not recorded.
trim.tier), which remembers whether you
have unlocked the Pro features. It contains no personal information. Clearing your browser
storage removes it.No cookies are set by this site.
Analytics. This site uses Plausible Analytics, which counts page views without cookies and without tracking or identifying individual visitors. It records aggregate figures such as how many people opened the trainer and which pages referred them. No personal data is collected and nothing is sold or shared.
Payments are not currently accepted. When they are, checkout will be handled by a third-party payment provider, and this page will be updated to name them and explain what they hold. Card details will never pass through this site.
Under the GDPR you have the right to access, correct and erase personal data held about you. Since this site holds no personal data, there is in practice nothing to request — but if you believe otherwise, write to the address below and I will look into it.
[Company name] OÜ · registry code [nnnnnnnn] · Estonia
hello@sailtrainer.eu