Polis

Cryptonex is a blockchain-based payment system that offers its users a decentralized platform to make fiat and cryptocurrency transactions. Users can convert fiat and cryptocurrencies. The Cryptonex network is based on the scrypt algorithm. It also enables debit and credit cards transactions as well as mobile payments.
Cryptonex uses a Proof-of-Stake (PoS) consensus mechanism and offers higher transaction speeds at lower fees.

Metal is a cryptocurrency payment service that lets users earn tokens when they send money through their App. Users are rewarded with Ethereum-based MTL tokens when they make payments through the App. The company has also developed a mobile App called Crumbs, that allows users to round up the total of their credit/debit card purchases, and have the difference be automatically used to purchase cryptocurrency.