Note: This Core Plot tutorial has been updated for iOS 10 and Swift 3.0 by Attila Hegedüs. The original tutorial was written by tutorial team member Steve Baranski. If you’ve ever wanted to include charts or graphs in your app, chances are you’ve considered the following two options: DIY. Write all of the drawing code yourself using Core Graphics and/or Quartz. However, this can be a lot of work.