No. Seedr offers WebDAV access to your storage -- which is supported by many FTP clients and tends to provide better download speeds. To get WebDAV support you will need a Master Account, as it is a premium-limited feature.
To upgrade your account to Master feel free to go to our Premium Plans.
Once upgraded, you will be able to connect your FTP client to our WebDAV endpoint at https://dav.seedr.cc/ using your Seedr account credentials.