The OpenCage Geocoder iOS SDK allows developers to integrate the OpenCage Geocoder API into their iOS applications written in Swift. This SDK works on iOS 9+ and requires ARC to build. Developers can add it to their projects using CocoaPods.
The prevalence of mashups on the web is probably thanks to the Google Maps API and other mapping APIs. It remains the most popular type of mashup, more than three times the second-most, photos. The ubiquity means maybe map mashups have lost some of their luster.