Hello, is there any framework made by apple similar to .NET or SpringBoot but for swift? I only know there is Vapor but it is not widely used and it is not supported by apple.
Swift for server-side
There's no server side frameworks for Swift by Apple. And you would not be able to find any frameworks as widely used as .NET as of now and in the near future.
I'm quite critical if Apple would support server-side Swift in the future. You should better visit swift.org (especially Swift on Server) and all related articles on the web.