Planogy - A feedback platform for all the creative work
Feedback by Pixelic - Painless design feedback and version control.
Loops Feedback - Feedback on design ideas in minutes via 110m+ people
Bird Eats Bug - Saw a bug? Send an instant replay to engineers. It will come with console logs and everything. Developers will ❤️ you.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Sesov - A community for anonymous design feedback