The free distribution of cryptocurrency tokens to the wallets of current cryptocurrency holders is referred to as an airdrop. It is a marketing tactic that cryptocurrency projects employ to increase awareness, attract new users, or thank current holders.
There are several ways to offer airdrops, including delivering tokens to specific addresses, based on a snapshot of current blockchain balances, or by taking part in particular events or campaigns. Airdrops provider users the opportunity to receive tokens without needing to make any kind of investment.