What are IOTA and the Tangle?
IOTA is a transactional settlement and data integrity layer for the Internet of Things. Ii is based on a new blockless distributed ledger architecture, the Tangle, which is scalable, lightweight, without any fees and provides a consensus in a decentralized peer-to-peer system. These features make IOTA and its Tangle perfect for nanopayments and the Machine-to-Machine Economy.
Learn more on the official IOTA website.