Ethereum, an innovative cryptocurrency conceived in 2015 by Vitalik Buterin, Gavin Wood, and Jeffrey Wilcke, made the creation of DApps (Decentralized Applications) possible for the first time, powered by smart contracts. Additionally, Ethereum has served as the backbone for numerous other cryptocurrencies operating as ERC-20 tokens on its blockchain.
Notably, Ethereum's network has transitioned from the initial proof-of-work algorithm to a more environmentally friendly and efficient proof-of-stake algorithm, marking a significant milestone in its development journey.
MyEtherWallet is a free open-source project. It provides the user with an interface for the Ethereum blockchain. Through this interface to the ETH Blockchain, it is possible to gain an insight into the transactions made there.
MetaMask is a worldwide popular, secure, and free browser extension that web applications can use to interact with or even read, the Ethereum blockchain. MetaMask also includes a key deposit and an Ethereum wallet for managing ETH-based crypto assets.