Neither RxSwift nor Combine is universally better, the right pick depends on your platform floor and your team's existing reactive experience. Combine is Apple's native reactive framework, introduced at WWDC 2019 and available from iOS 13 onward; RxSwift is a third-party Swift implementation of ReactiveX, the same reactive pattern behind RxJava and RxJS, and it predates Combine by several years.
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