Recently, some people have been saying that Billions is just 'old wine in a new bottle' compared to Worldcoin, but actually, these two projects are quite different. The most notable differences lie in the verification method and user sovereignty: Billions doesn’t collect personal data and only uses zero-knowledge proofs. As everyone knows, Worldcoin collects iris data, which is an invasive verification method and has led to it being deemed illegal in many regions worldwide. Secondly, Billions users have full control over their identity and data, whereas Worldcoin’s data storage is managed by the project team. From this perspective, Billions aligns more with the spirit of decentralization. All in all, Billions has made quite a few advancements compared to Worldcoin.