Meta (Facebook) frequently updates its server-side code. Eventually, even older versions of the app installed via IPA files may stop loading the news feed or sending messages. If you are unable to sideload an IPA or use the "Purchased" method, the best alternative is to access Facebook via the . The mobile web version (mbasic.facebook.com or the standard m.facebook.com) is highly optimized and works perfectly on older devices without requiring any installation.
The official Facebook app is no longer supported on iOS versions below 13.4. IPA Files: facebook ipa for ios 1255
For users holding onto reliable workhorses like the iPhone 5s, iPhone 6, or the original iPad Air, iOS 12.5 remains the final supported software. While these devices still function perfectly for calls and texts, app compatibility has become a major hurdle. Meta (Facebook) frequently updates its server-side code