| Item | Why it’s required | |------|-------------------| | | Newer iTunes versions removed the App Store entirely. | | Apple ID (the same one you’ll use on the iOS 7.1 device) | The purchase record is tied to the ID. | | Internet connection | To sync the purchase with Apple’s servers. |
A: No. All data lives on Facebook’s servers. The app merely provides a UI to access it. Logging in with the same credentials restores your content.
A: Only if the IPA is tied to your Apple ID and you use a tool like Apple Configurator 2 or a legitimate MDM solution. Sideloading an IPA that you didn’t purchase is a violation of Apple’s terms and possibly copyright law.