The GDPR is currently compliant stashcat-Messenger, according to the manufacturer, is used by companies, in authorities and schools, in the health sector, by the police and the armed forces - wherever confidential data is involved. In total, the messenger is in use by around 800.000 users - the spectrum ranges from schoolchildren, parents, teachers and doctors to authorities with the police and the armed forces.
More on this at com! Professional.de