Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Dynamic Mockups - Create Realistic Mockups at Scale
Canva - Canva is a graphic-design platform with a drag-and-drop interface to create print or visual content while providing templates, images, and fonts. Canva makes graphic design more straightforward and accessible regardless of skill level.
Placeit - Generate realistic product shots in seconds
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Smartmockups - Create stunning product mockups, easily and online.