Privacy Policy
Last updated: November 2026
The short version: your numbers never leave your device, we run no tracking cookies, and there is nothing to opt out of because there is almost nothing collected.
Who is responsible
The data controller is Studio Dreamhop, an SRL registered in Belgium under enterprise number 0770.297.487, operating this site under the trade name OpenToolBase. Contact: hello@opentoolbase.com.
The numbers you type in
Everything you enter in the calculators (income goals, costs, rates, hours) is processed in your browser and saved only in your browser's local storage, so your inputs are still there when you come back. None of it is sent to our servers. We could not read your numbers if we wanted to.
If you use a Share button, your inputs are encoded into the link itself. Anyone you send that link to can see those values, so share it as deliberately as you would share the numbers.
Analytics
We use Umami, a privacy-focused analytics service, to count visits in aggregate: which pages are viewed, which site or search sent the visit, from which country, on which device type. It also counts anonymous actions inside the tools, such as "a calculator was used" or "a quote was printed", so we know which features help. It never records the numbers you type. Umami uses no cookies and does not follow individual visitors, which is why you don't see a cookie banner on this site. We see totals and trends, never individuals.
If you write to hello@opentoolbase.com, we receive your email address and message and use them only to reply. We don't add you to any list.
Your rights
Under the GDPR you can ask us for access, correction or deletion of personal data we hold about you. In practice we hold almost none: calculator inputs stay on your device (clear them by clearing your browser data), and analytics are anonymous aggregates. For anything else, email us and we'll sort it out. You can also complain to the Belgian Data Protection Authority (autoriteprotectiondonnees.be / gegevensbeschermingsautoriteit.be).
Changes
If we ever add features that change what's collected (for example an optional email feature or advertising measurement), this policy will be updated before they go live, and the date above will change.