IOTA. 1 iota.
IOTA itself is an open-source distributed ledger, otherwise known as a cryptocurrency, and its aim is to facilitate secure payments and communications between devices that are a part of the Internet of Things. Instead of using the blockchain technology as Bitcoin does, IOTA uses a directed acyclic graph and also allows users to transact without incurring any fees – much unlike other cryptocurrencies. Confirmation and transaction times are faster than the blockchain, and the number of individual transactions that the system can process simultaneously is unlimited – a distinct advantage over the sometimes sluggish blockchain.