Your profile and the calculator inputs are kept locally in your browser (IndexedDB). Your language choice and a few preferences sit in your browser's localStorage. This is so the tool works and remembers your settings.

This data stays on your device. It is not sent to any server and we cannot see it.

We use no tracking or advertising cookies and no analytics that identify you. What we store is functional and needed to run the tool, which does not require consent. That is why there is no cookie banner.

The site is hosted on Vercel. Like any website, the host records standard technical details of a visit (such as your IP address and the requested URL) for security and operation. We do not use those logs to track you.

You can clear your profile in the app via "Clear and start over". To remove everything, clear the site data in your browser settings.

On the optimised stack you can tap a button for the VAT-reclaim service or an installer quote. We count anonymously how often those buttons are clicked (no cookies, nothing that identifies you), so we know whether the service is worth building.

If you enter your email on the signup form, we store it (with our database host Supabase) only to contact you about that. No newsletter, no spam. Email info@stekkerkompas.nl to have your data removed.

Questions? Email info@stekkerkompas.nl.