aelf vs Aurora

aelf is primarily a multi-chain parallel computing blockchain network which was created to address several of the limitations of traditional blockchain systems, such as performance bottlenecks and data complexity. aelf's vision is to be a 'Linux Ecosystem' equivalent for a blockchain that incorporates state-of-the-art IT design principles, which in particular allows developers to customise Chains to meet their own needs.

Aurora is a Virtual Chain built on NEAR. The first of many. It’s, at the same time, the sandbox and the proof of the robustness of the parent protocol. It’s a smart contract - probably the most complex that exists - that is also an Ethereum Virtual Machine, providing a turn-key solution for developers to operate their apps on an Ethereum-compatible, high-throughput, scalable and future-safe platform, with low transaction costs.