Zoommy - Zoommy helps you find awesome free stock photos for your creative product or inspiration.
Promomatic - Easily create beautiful app store assets
PhotoRoom - Create studio-quality product pictures in seconds.
AppLaunchpad - Create free beautiful screenshots for App store/Google play
Zahomy Catalogue App - Share multiple product photos with watermark to customers.
DaVinci Apps - Сreate customized screenshots for your app in just 3 steps