Although the sweet spot for iOS applications will likely remain all-in-one applications, I’m happy to see movement towards applications that can work together in a more seamless manner, bringing us closer where iOS software can form an ecosystem of related and connected apps, not a market of isolated all-in-one apps. I’m looking forward to the future where iOS apps form a loosely connected network where getting a job done with three applications doesn’t feel like juggling.
This post is a well done introduction to some of the primary ways iOS app share information, and provides a good overview of x-callback-url, and how it’s implemented in Terminology.