AppMockUp - Create the most compelling screenshots for your app.
JustRecruit.co - Easy to use, low-cost recruitment software and websites, perfect for start-ups, small and growing recruitment businesses
AppLaunchpad - Create free beautiful screenshots for App store/Google play
draw.io - Online diagramming application
iOS 14 Icons - Elegant collections of minimal icons made for iOS 14.
yEd - yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.