WorkFlowy is a note and list app built around one nested bullet list, with no separate documents or folders. It is available as a web version and as apps for Windows, macOS, Linux, iOS and Android, with sync between devices. An AI feature is available under separate terms.
The operator is FunRoutine Inc., which the privacy policy describes as a US-based company, so the service falls under US law. The policy says that some information is stored on Amazon Web Services in North Virginia, USA, and that personal data may be processed in countries outside the EU and EEA. It names Google Workspace as a third-party service without a region. The website names no EU hosting option and describes no data processing agreement; the GDPR is mentioned only in general terms. WorkFlowy is proprietary, not open source, and the site describes no self-hosted version. A European organisation should treat stored notes as US-hosted and check transfer terms before storing sensitive material.