Two years ago I measured Apple’s use of Swift in iOS 10.1 and last year I counted how many applications were using Swift in iOS 11.1. This year I’m analyzing iOS 12, released by Apple this month. Methodology The methodology and tools used for this article have been detailed in the previous posts. If you are interested, please refer to Apple’s use of Swift in iOS 10.1 and macOS 10.12. Apple’s use o