CASOMO

Privacy Policy

Data Collection

Our website collects minimal data. Anonymous usage analytics (page views, calculator interactions) are handled entirely by PostHog — we do not store any analytics data ourselves. PostHog does not capture financial inputs, salary figures, or calculation results. If you provide your email address via a signup form, it is held by Buttondown, our newsletter provider — we do not store your email ourselves. You can unsubscribe at any time.

Our calculators run entirely in your browser. No salary, tax, or financial data is collected or transmitted to any server.

We process anonymous analytics under the lawful basis of legitimate interest (UK GDPR Article 6(1)(f)) to improve our tools and understand usage patterns.

How We Use Your Data

Analytics data is used solely to improve our tools. Email addresses are used only for product update notifications. We do not sell or share personal data with third parties for marketing purposes.

Third-Party Services

The website is hosted on Vercel. Anonymous analytics are managed by PostHog. Email subscriptions are managed by Buttondown. Newsletter signup forms use Cloudflare Turnstile for bot verification — this may set a short-lived cookie but does not track you across sites. All user data is held by these third-party providers — we do not operate our own data stores. No advertising or tracking scripts are loaded.

Cookies

This website does not set any cookies. Analytics use in-memory storage only and do not persist across sessions — there is no cross-session tracking. Cloudflare Turnstile may set a short-lived cookie during bot verification. No advertising or tracking cookies are set.

Your Rights

We do not hold personal data directly. If you subscribed to our newsletter, you can unsubscribe via the link in any newsletter email. Analytics are anonymous and do not persist across sessions, so there is no personal data to access or delete.

Contact

For privacy-related inquiries, get in touch.

Last updated: March 2026