[defap]

>If you backup your iPhone, apps and their data don't actually get backed up. Instead, your computer just stores a list of the apps installed and where the icons were, and app data only gets backed up if the developers have used special APIs or whatever to opt-in to having the app's data be part of the backup process.

Not at all true [1].

Everything in the app's container gets backed up with the exception of the app bundle, Library/Caches/, tmp/, and other things the developer explicitly opted out.

[1] https://developer.apple.com/icloud/documentation/data-storag...

[Alex3917]

Fair enough. But regardless, Apple is describing it as performing a full backup, when in reality there is no way to restore your phone to its previous state.

It doesn't matter how the phone works or how the apps work. If you can't restore, you don't have a backup. End of story.

[dwaite]

Google Authenticator almost certainly doesn't store its TOTP state on the filesystem - it is in the secure enclave. I don't use Authenticator so I can't guess whether they marked its state as exportable.