> P2P proximal wireless transfer, sure, but there's half a dozen apps on your phone that'll let you punt a document, a photo, an invite to someone on the other phone OS platform.
Yeah, via their server, which means it's slow even if you have wifi, requires valuable data credit if not, or it requires the installation of a companion app on the other device and putting the other device in the same network.
Do you have an example for such an app? I don't know anybody using 3rd party file transfer apps. Usually files are uploaded to some cloud service (iCloud, OneDrive, ...) and then shared with a link if they can't be sent via messaging apps like WhatsApp or Signal.
Yeah, via their server, which means it's slow even if you have wifi, requires valuable data credit if not, or it requires the installation of a companion app on the other device and putting the other device in the same network.