FOLD is proprietary freeware with private source code. Users receive the Windows application, the Android app through an official channel, documentation, applicable third-party license notices, and published SHA-256 values for direct downloads. The Play Console AAB is not a public download.
- Windows 11 x64 is officially supported and tested.
- Windows 10 22H2 x64 is experimental/best-effort and has no compatibility guarantee.
- Android 8.0 or newer is required.
A public release is ready only after all of the following are true:
- Windows and Android artifacts are built from the accepted candidate;
- the no-copyleft runtime gate passes on the packaged Windows artifact;
- EULA, privacy, security, and third-party notices match the package;
- the Android signing certificate is verified;
- the Play Console AAB is kept private and its upload certificate is verified;
- unsigned Windows status and SHA-256 values are published accurately;
- private vulnerability reporting is enabled; and
- the public showroom contains no private source, secrets, build tools, or internal Git history.
This status is not a promise of a release date, feature roadmap, or Windows 10 compatibility.