Only if you consent: a random anonymous identifier (not linked to your identity), which check you took, its language, your answers and score, coarse device type (e.g., iOS/Android), time zone, and how long the check took. That is all. This data cannot reasonably identify you, and we do not attempt to re-identify anyone.
You can decline the research card at any time — the checks work identically either way. If you consented and change your mind, clearing your browser data for this site removes the stored queue and your consent choice.
We use your browser's local storage only for: your language preference, your consent choice, and (with consent) the anonymous research queue. No advertising trackers are set by qodena itself. If ads are shown, the ad provider's own policies apply and are labeled.
Some “next step” links may be paid (affiliate) advertisements, and they are labeled as such next to the link. Whether to use them is entirely your choice and never affects your result.
qodena checks are wellness self-checks built on published questionnaires. They are for reference only and are not a medical diagnosis or medical advice. If you are in crisis, please use the emergency numbers shown in each check.
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