Usersnap - Visual Feedback - Usersnap helps your business with its versatile feedback platform to build better, more successful products and services with the help of user feedback. Collect feedback along your product development lifecycle. Try it for free.
Marker.io for Slack - Turn screenshots into Slack messages ✌️
Feedback by Pixelic - Painless design feedback and version control.
Instashot - Access text from any image instantly.
Sesov - A community for anonymous design feedback
ScreenTray - A better way to capture, annotate and share screenshots