Official versions from F-Droid are built and signed by the repository to match the original source code, ensuring they haven't been tampered with.

The verified, safe version of this build can be downloaded from the F-Droid repository or directly from the developer's GitHub Releases .

You can find the specific modded file reported on platforms like APKadmin , which hosts user-uploaded content. Safety and Risks

The original developer has stated that SAI is no longer under active development, though the installer functionality remains stable for older Android versions. Releases · Aefyr/SAI - GitHub