Sketch

Odessa: XD Responsive UI Kit (Premium)

Odessa is a huge collection of responsive UI components & layouts for Adobe XD, Figma and Sketch.
Constructor UI Kit: Multipurpose Premium Design System

Get the Constructor UI kit with 311 templates, 545 blocks, and over 1,000 UI cards across 22 categories. Compatible with XD, Figma, and Sketch.
The Ultimate Guide to Official Apple Design Resources (2025)

Apple provides a comprehensive suite of design resources: templates, icon kits, fonts, bezels, and more, to help you build beautiful, consistent apps.