Perfect for refactoring design work. Dropped the swift class files from the prototype into the tool and produced a clear design model within 10 minutes. From this a bit of deleting and dragging properties and methods to a simpler architecture was straight forward. And voila - redesign completed in a two hour session ! Plus devSketch files can be added into the xCode project - design is kept with the project and can be versioned ! It’s a good tool ! Thanks so much for sharing this ! By the way - a prior reviewers negative comment about ordering of methods into functional groups would be based upon large overloaded classes. Good class design should already provide grouping and isolation of behavior. This reviewer has 23 years of object development experience on large industrial scale applications.