Legal
Privacy Policy
Last updated 16 June 2026
This policy explains how Dutchcode B.V. (KVK 90452151, Den Dungen, the Netherlands; support@yieldmeister.com), the data controller for YieldMeister, handles personal data. We keep data collection to a minimum, we never sell it, and the public site and rate data require no personal data at all.
What we collect
Browsing: our hosting provider processes standard request data (IP address, browser type, page requested) to serve pages and protect against abuse. If you sign in (only needed to manage an API key or billing): your email address and a provider account identifier from Google or GitHub. If you use the API: your API key and per-month request counts. If you subscribe: billing details are handled by Stripe — we receive your customer/subscription identifiers and plan, not your full card number. Feedback widget: what you write plus basic error diagnostics. The comparison data itself is non-personal.
Why we process it (legal basis)
To provide an account, issue an API key, meter usage and run billing, we rely on performance of a contract with you (GDPR Art. 6(1)(b)). To keep the service secure, reliable and diagnose errors, we rely on our legitimate interest (Art. 6(1)(f)). Where you submit feedback, we rely on your consent. We do not use your data for advertising or automated decision-making.
Cookies
We set a strictly-necessary, HttpOnly session cookie only after you sign in, and a short-lived cookie during the sign-in flow. We use no advertising or cross-site tracking cookies and build no advertising profiles.
Third-party processors
We use a small set of sub-processors under data-processing agreements, each only on our instructions:
| Provider | What they receive | Privacy policy |
|---|---|---|
| Cloudflare | IP address, request metadata (hosting, CDN, security, database) | cloudflare.com/privacypolicy |
| Stripe | Email address, subscription identifiers, billing details (payment processing) | stripe.com/en-nl/privacy |
| Sentry (EU region) | IP address, browser data, error context, feedback text you submit | sentry.io/privacy |
| Email address and account identifier (only if you sign in with Google) | policies.google.com/privacy | |
| GitHub | Email address and account identifier (only if you sign in with GitHub) | GitHub Privacy Statement |
International transfers
We prefer EU/EEA processing (e.g. our database and Sentry are EU-region). Where a processor (such as Stripe, Google or GitHub) processes data outside the EEA, it is covered by an adequacy decision, the EU-US Data Privacy Framework, and/or EU Standard Contractual Clauses.
Retention
Account and API-key records are kept while your account is active and for a short period afterwards; usage counts are kept per calendar month for metering. Billing records are kept as long as legally required (Dutch tax law). Request logs and error diagnostics are kept only as long as needed for security, then deleted or aggregated.
Your rights
Under the GDPR you may request access to, correction or erasure of your personal data, object to or restrict processing, withdraw consent, and request portability. Email support@yieldmeister.com — you can also delete your API key from your account at any time. You have the right to lodge a complaint with the Dutch Data Protection Authority (Autoriteit Persoonsgegevens).
Changes to this policy
We may update this policy; the version in force carries the date shown above.
Questions about this page? Email support@yieldmeister.com. YieldMeister is a product of Dutchcode B.V. — both addresses route to the same team.