GfA- QR Scanner a practical tool for friends of our association - free of charge - QR Codes are very practical and meanwhile widely used. The GfA now offers this little tool to its friends and members. Besides a handy QR scanner there is also a push function integrated. Advantage: You will not miss any changes at events or other news. Therefore: the reference to advertising refers to this news function (push): By installing the APP you agree to the conditions. Advertising from third parties, i.e. non-members, is excluded.