Many serious UI designers use the Mac Sketch app to design their screens but have to resort to 3rd party tools in order to show animated previews. The Diya plugin renders animations inside Sketch & can save you a lot of time & effort. The aim of the plugin is to bring timeline animation directly to Sketch. With it you can animate designs & preview them right away, without ever having to leave Sketch.
The ‘Reduce’ app is a lightweight tool that optimizes big, heavy Sketch files. It does so by employing a number of techniques like automatically removing hidden layers.
With the Frames toolkit you can enhance your Sketch environment & greatly increase productivity with 100+ ready to use layouts that will kickstart your projects & you can get started in just seconds.