Kite Compositor Overview
A powerful animation and prototyping application for Mac & iOS. Kite Compositor provides a full suite of powerful tools that let you build complex interfaces on a WYSIWYG canvas. You can create elaborate animations using the integrated smart timeline which allows you to drag and edit animation durations, keyframes and curves. You can also import your designs from Sketch as native Kite layers, and preview your designs on iOS with the companion app. They're even working on a KiteKit framework to embed and play .kite documents right from within your own iOS or macOS apps!