Energy Web Token (EWT) Review

Ripple is a global payment protocol aimed to provide fast transactions and cheap payments internationally. The network uses a digital currency known as XRP (sometimes it's referred to as Ripple). Unlike other cryptocurrencies Ripple is not aimed to replace banks, rather this project is created to improve the work of banks (including transactions between different banks) via blockchain solutions.

Hydro Protocol (HOT) is a cryptocurrency and operates on the Ethereum platform.

IOTA is a distributed ledger and cryptocurrency created to process operations between devices of the Internet of Things. IOTA was launched in 2015. The project is based on an unique directed acyclic graph (DAG) instead of a blockchain. DAG uses a Tangle technology which provides unlimited scaling opportunities and free and fast transactions. The project is backed by non-profit IOTA Foundation. Besides, IOTA ecosystem has its own data marketplace available both for companies and individuals. IOTA quickly gained strong partnerships in the tech industry (including Volkswagen and Bosch) and high market capitalization (by the end of 2017 IOTA reached top 5 list by its, market cap although now its position is lower).