In 1983, the American cryptographer David Chaum conceived an anonymous cryptographic electronic money called ecash. Later, in 1995, he implemented it through Digicash, an early form of cryptographic electronic payments which required user software in order to withdraw notes from a bank and designate specific encrypted keys before it can be sent to a recipient. This allowed the digital currency to be untraceable by the issuing bank, the government, or any third party.
Monero was built from the ground up to focus on user choice: the choice for scalability, the choice for privacy, and the choice for decentralization. It features a proof-of-work algorithm known as CryptoNightV8, and makes heavy use of the ring signatures to ensure anonymity is maintained. You can also receive Zcash, Dash, and other cryptocurrencies for your output using the AUTO-Mining Allocation feature in our dashboard.
When creating a new website, one doesn't make a new protocol unless it is necessary. For example, HTTPS is an encrypted version of HTTP, therefore it is useful and necessary. When creating an app such as "DarkSend", one doesn't need to make a new protocol such as "Darkcoin". This is synonymous to making an HTTPS alternative (eg. HTTPSX) for your new encrypted chat website and not adding any new security or functionality to HTTPSX.