I guess that a key question is whether one can trust iOS airplane mode to fully take the phone offline.
And under what circumstances does the phone leave airplane mode, and go back online.
But even if that were solid, you'd still be ~unable to install apps that Apple doesn't provide. Unless you play the developer game, and I gather that's limited in app number, and how long they'll stay functional.
And under what circumstances does the phone leave airplane mode, and go back online.
But even if that were solid, you'd still be ~unable to install apps that Apple doesn't provide. Unless you play the developer game, and I gather that's limited in app number, and how long they'll stay functional.