Screenzy - A simple screenshot beautifier
iOS Jetpack - Beautiful easy-to-use screenshot templates for App Store
Screely - Screely instantly generates dribbble-ready images. Simply upload your screenshot and we'll do the rest.
Setapp - Your shortcut to prime apps on Mac, an App Store alternative
FlyScreen - Powerful screenshot organizer with text recognition and tags
Gmail Screenshot by cloudHQ - Simplifying sending screenshots from gmail (free)