The project CUATROK includes 4 services, I'm interested in the opinion of the communityPortal:
https://www.cuatrok.net/4 coins are supposed to be used: BTC, ETH, XRP, XLM and there are 4 services:
The COLLECT service is a freelance exchange; special tasks categories for blockchain: the creation of smart contracts, altcoins. Also, advertising in social networks with users paying for subscriptions to groups, seems to be the first service having this for telegram, discord and bitcointalk.
The COMPETE service is a competition section, the first feature is Quiz to test knowledge of the blockchain and anyone can add questions (questions are moderated), the second is BET for cryptocurrencies growing, and the third function is a lottery on the Bitcoin blockchain, the ticket is dropped with random numbers and the winners are determined depending on the hash of the next 100-n block
The CONVERT service is an exchange between these coins, that is, 3 trade pairs that are displayed on the screen SIMULTANEOUSLY, also an arbitrage feature is present.
The CARRY service - trade for cryptocurrency, not yet thought out.
The main idea is the TRUST system (trust level) which should protect against bots, multi-accounts and malicious users, since half of the services are not available with low TRUST, TRUST is not earned very quickly and you can lose very easily, for example, if you take the task and do not complete it in time.
At the moment, the service is in the beta version
