Metal is a hybrid platform making crypto coins and fiat currencies meet in the middle as it provides conversions both ways. And this is also the essence of the mining process for this brand.Still far from the levels of Ethereum even if built on that blockchain, Metal represents a modest player on the market employing the ERC20 token. But what makes it unique to users is PoPP - Proof of Processed Payments. With just 20 million coins in circulation and a price for one item around $5, Metal exercises little effect on the overall market. But the clever concept and the innovative app that operates might speed up the growth.