Source Wireframe Kit - Library of 537 blocks for desktop and mobile prototyping
Display.land - Capture and edit your reality from your phone
Platforma - Wireframe library of layouts and UI elements
Framer Form - Give your Framer-prototypes a third dimension
iOS Wireframing UX Kit - An easy, speedy way to wireframe for iOS
Vectary for Figma - Create photorealistic 3D visuals in Figma