Hacker News Reader

Actually, google does a lot of iOS development and has dozens of shipping iOS apps (https://itunes.apple.com/us/artist/google-inc./id281956209), and thus has a pretty sizable community of Objective C programmers. So Google will almost certainly be shipping apps containign Swift code as soon as the tools stabilize enough for them to do so.

I think they're mechanically translating their Java code to Objective C:

https://github.com/google/j2objc

They might actually do that: https://itunes.apple.com/us/artist/google-inc./id281956209

I don't think it would be weird if they developed OSX/iOS applications in Swift.

I'd be surprised if they didn't use Swift for their iOS apps.

They're not using Swift at the moment. But they might at some point in the future. Source: friend who works at Google.

Apple simply doesn't have any own solutions for server-side development. Google has own languages for both client (Dart) and server (Go).