EveryCoin is a digital currency that powers the Aaron Platform. The Aaron Platform is a blockchain-based financial project that is located in Thailand. They are developing a digital payment platform that will consist of an exchange, wallet, and a stablecoin called Tabipay that will complement the functions of EveryCoin.

Qtum has been described as a hybrid between Ethereum and Bitcoin. Qtum is a smart contracts platform that places a strong focus on value transfers as well as decentralized apps. Qtum enables users to create smart contracts on the platform and conduct cryptocurrency transactions.
Qtum has a Proof-of-Stake (PoS) consensus algorithm. Several decentralized apps are already using the platform.

QChi is an Ethereum-based token with no clear benefits. Their marketing materials do not provide any specific information about their roadmap or what advantages it offers compared to other cryptocurrencies.