: Never log into a modified or "tweaked" version of Facebook (like Facebook++), as these can steal your login credentials. Stick to original, unmodified IPAs.
On your iOS device, go to (or Device Management ). facebook ipa for ios 9.3.5
App Store “Download an older version” : Never log into a modified or "tweaked"
If you're running iOS 9.3.5, you might be experiencing issues updating Facebook due to compatibility issues. The latest version of Facebook might require a newer version of iOS, which isn't available for your device. This is where installing an older version of Facebook IPA comes in handy. unmodified IPAs. On your iOS device