Been working with rails since Rails version 1.x. I've been doing plenty of ruby on and off rails with some other frameworks (Sinatra/Grape) and scripting for a while now. Full stack development including maintaining servers.
I've build several apps from scratch for iOS including several for my startup. The main app of the startups (where I was a co-founder) has been featured several times in the App Store. (itsglimpse.com)
Been using Swift since it was announced and shipped production code since a month after it was announced :). I'm also working on several backend Swift projects including a websocket server implemented in Swift and a Swift on Linux Docker image.
I've been working on and off on Mac apps for almost 5 years with more serious development the last 3 years. I have several apps in the works but have had a paid app in the Mac App store for over a year now. The app in the Mac App Store: http://mackernews.com Its a Hacker News Mac client.