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What does Symptom Check produce?

The tool draws on a knowledge base of more than 530 conditions, 21,000 symptom variations and 360 symptom groups, asks follow-up questions and returns a care level. It also produces pre-triage and documentation output as PDF and FHIR. Illness Check estimates the probability of one specific condition. The FAQ describes the guidance toward urgent care, a doctor or self-care and does not set out an emergency escalation process or how red flags are detected.

The home page lists four products. Health Check, Symptom Check and Illness Check face patients. Clinical Search is conversational AI on medical knowledge for professionals, in German only for now, and XUND says it is working on certifying it as a medical device.

What does the certifications page say?

XUND states that Symptom Check and Illness Check are "certified as a class IIa medical device" under EU MDR 2017/745, with TUV Sud as notified body. It also lists EN ISO 13485:2016, ISO 27001:2022 and a BSI C5 certificate. Certificate dates are not shown. XUND's medical-quality page says in-house doctors and editors review the content together with Thieme Group, and a Medical Library add-on brings Thieme fact sheets and more than 160 self-care tips.

Who founded and funds it?

XUND is registered in Vienna, and its founders are Tamas Petrovics, Lukas Seper and Dr. Zoltan Tarabo. By the vendor's account it has raised about EUR 16 million over five rounds since 2020, the latest a 2025 pre-Series A led by Lead Ventures, plus over EUR 1 million in public grants. Round-level amounts are not given. Named investors include MassMutual Ventures, RoX Health (Roche Group) and Thieme Group.

Who uses it?

XUND claims 10 million or more patients with access, more than 35 experts and three offices in Europe. It says hkk Krankenkasse, with more than a million insured, integrated Health Check and Symptom Check in March 2025. Logos include Thieme, AOK Plus and Generali. A partnership with Semmelweis University from October 2023 is described as research on emergency department use, with no results.

Integration and languages

The API ships with documentation, FHIR output and a white-label web app, plus Ecosystem Management and Healthcare Providers add-ons. The FAQ lists English, German, Hungarian, French, Italian and Portuguese, and a new language takes 8 to 12 weeks. The site carries no validation study or accuracy figure.

The verdict

XUND suits a payer or digital health firm that wants a symptom step it can white-label and feed into FHIR workflows. The FAQ calls the core offering SaaS with support included, an optional Data Insights add-on and strategic partnerships on tailored agreements, and publishes no price.