Sam Altman’s Worldcoin project has launched a self-custodial mobile app that allows users to manage their World ID and a range of cryptocurrencies. The World App, developed by Tools For Humanity, the company behind Worldcoin, is built on the Ethereum sidechain Polygon, according to a Monday blog post by the company. ... Read More: Sam Altman's Worldcoin Introduces App for Eyeball-Scanning Crypto Project