0x is a decentralized exchange for ERC20 tokens, meaning it supports Ethereum tokens only. It’s an open protocol platform that wants the exchange market to be decentralized. It’s a fast and gas free protocol, meaning there are no fees to be paid for the transaction costs, like happens on other DEX. coins.community
Zcash is a fork from Bitcoin blockchain, and it serves the same purpose of Bitcoin, to transmit value. It is also a coin that makes transactions completely anonymous, by shielding both senders and receivers, as well as the amounts involved. coins.community
Nano was known as RaiBlocks, and it’s a cryptocurrency that has very low fees and near-instant transactions, solving scalability issues existing with other coins. Nano wants to do one thing only, transmit value. Their unique programming structure allows them to do this faster than any other crypto platform. coins.community
Monero is anonymous digital money, unlike Bitcoin, public digital money. Monero implemented cryptonic hashes of the receiving addresses, concealing activity from those addresses. coins.community
Stellar solves slow payments transaction speeds, handling thousands of transactions in a matter of seconds, VISA speed like. Not only this is a speed capable of challenging the mainstream existing services, but also overcomes the high fees and speeds from Bitcoin, meeting its goal for daily and international payments. Some call it an improved Ripple. coins.community