Basil Chat - Design feedback via chat
Loops Feedback - Feedback on design ideas in minutes via 110m+ people
Plerdy - Plerdy is a comprehensive conversation rate optimization software that caters to professional online marketers and agencies, allow them to enhance website performance and increase revenue greatly.
Marker.io for Slack - Turn screenshots into Slack messages ✌️
Feedback by Pixelic - Painless design feedback and version control.
Planogy - A feedback platform for all the creative work