Installing the official Facebook app on iOS 9.3.5 is no longer possible through standard App Store searches because the current version requires a much newer operating system . While you can find
Many online forums share IPAs that are either fake, outdated server-side dependencies, or worse—injected with malicious scripts. A "verified" IPA typically comes from trusted archival communities like the Internet Archive or known developers on GitHub who have re-signed the app. facebook ipa for ios 935 verified
: Often hosts "Wayback Machine" style archives of old IPA files. Installing the official Facebook app on iOS 9
: Even if the app installs, Facebook may eventually stop supporting the API used by older versions, causing the app to crash or fail to log in. Web Alternative outdated server-side dependencies