Reference

Peer-to-peer (P2P) transfer

A peer-to-peer (P2P) transfer moves files directly between two devices without routing them through a central server or the cloud. AirDrop and Quick Share are examples — the connection is device-to-device, so it is fast, private, and works without internet.

Privacy & securityGeneral

Peer-to-peer (P2P) transfer

Also known as: P2P transfer, peer-to-peer file sharing, direct file transfer

A peer-to-peer (P2P) transfer moves files directly between two devices without routing them through a central server or the cloud. AirDrop and Quick Share are examples — the connection is device-to-device, so it is fast, private, and works without internet.

  • Device-to-device, with no central server or cloud copy
  • Faster and more private than upload-then-download
  • AirDrop and Quick Share are common examples

Direct, not through the cloud

In a P2P transfer, the two devices talk to each other directly, often over a local Wi-Fi or Bluetooth link, instead of one device uploading to a server and the other downloading from it. There is no intermediate copy stored online.

This makes P2P fast for large files and more private, since the data does not pass through a third party. Apple’s AirDrop and Android’s Quick Share are the everyday examples; many cross-platform apps use the same direct-link approach.

Why it helps with storage

Sending photos and videos peer-to-peer avoids the slow upload step of cloud sync entirely, so moving a large camera roll to a laptop can be much quicker than uploading and re-downloading. Received files still take up space on the receiving device.

P2P transfers do not require a data plan, so they do not eat into a cellular cap the way uploading to the cloud over mobile data would.

Related terms

Keep reading the reference.