: You must have previously "purchased" (downloaded) Facebook on your Apple ID using a newer device that supports current iOS versions. Steps : Open the App Store on your iOS 9.3.5 device. Tap the Purchased tab at the bottom. Search for "Facebook" in your list of purchased apps. Tap the Cloud icon to download.
If the app doesn't appear in your history, you can bypass version restrictions via jailbreaking. verified download facebook ipa for ios 935