Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Device Shots - Generate high-resolution device mockups using a screenshot.
Mockup Generator - Create attractive product screenshots with just a few clicks
Facebook Design - Devices - Images and Sketch files of popular devices.
shotsnapp - Create beautiful device mockup presentation
Simple Mockups - Minimalistic devices mockup pack for Sketch & Photoshop