AirDrop to share and receive photos, documents, and more with other Apple devices that are nearby. Before you begin. An airdrop, in the cryptocurrency business, is a marketing stunt that involves sending coins or tokens to wallet addresses . AirDrop is a proprietary ad hoc service in Apple Inc.'s iOS and macOS operating systems, introduced in Mac OS X Lion (Mac OS X 10.7) . Airdrops involve crypto projects sending free tokens en masse to their communities in a bid to encourage adoption.