Preventicus GmbH is one of the leading Digital Health companies based in Jena, Germany, offering smart ICT- health solutions for smartphones and smartwatches, focusing on new methods to screen Atrial Fibrillation (AF) in large populations for stroke prevention. Preventicus unique European cloud service performs heart rhythm analysis based on pulse wave recordings captured with smartphone camera and standard smartwatches. Patients/users do not need extra accessories or devices. Preventicus’ smartphone camera application “Heartbeats” is used for AF population screening (users have to regularly perform 1-minute tests, especially in case of palpitations). Preventicus’ smartwatch application is designed for continuous 24/7 rhythm analysis for months or years, especially in patients after stroke, TIA, atrial fibrillation or in patients with cardiovascular risks. Both methods have been comprehensively validated: https://www.preventicus.com/en/evidence/. The applications, plugins and the central cloud service are CE marked medical devices class I and class IIa.