Novacoin is a hybrid Proof of work (POW) / Proof of stake (POS) decentralized peer-to-peer cryptocurrency.The Proof of Work part of Novacoin is based on the Scrypt hashing algorithm. Proof of Stake contributes to the coins energy efficiency, as there is no need for nodes to contribute mining power to part of the money creation process. As of now, Novacoin is set to be capped at 2 billion coins. However Novacoin stated that the cap limit may be lifted if the situation requires it. It looks very much like a variation of Sunny King Peercoin.
EXMR is the official token of GetCryptoPayments® gateway, and its main function of this payment gateway will be to integrate a wide universe of currencies and tokens through a competition, with the acquisition of Ethereum Monero for that purpose. The online merchants and the local store can receive payments on most cryptocurrencies, safely and quickly with a low rate. This payment gateway will allow retailers worldwide to accept payments in Ethereum Monero, Bitcoin, Ethereum, Litecoin, and altcoins. There will be no fees for payments made in EXMR.