The specific string you've mentioned can be broken down into technical identifiers often found in file sharing or third-party app repositories: Likely Meaning Refers to version 16 of the application. 3gs-univ

Includes built-in ad blocking, a text-only mode, dark theme, and a reading mode.

Downloading "hidden" or "user-bfi2" IPA files from unofficial sources carries significant security risks, including malware or compromised privacy.