Doorbell.io - Collect in-app user feedback. Available on websites, iOS, and Android.
ProjectHuddle - Get design feedback and client approval using WordPress.
Usersnap - Usersnap is a customer feedback software for SaaS companies that need to constantly improve and grow their products.
Invision - Prototyping and collaboration for design teams
Saber - Quick and Easy Website Feedback - Stop losing customers to website errors and usability problems. Get Saber's website feedback tool for quality user feedback, suggestions and bug reports.
Savahapp - The all-in-one design sharing, collaboration, workflow and app prototyping platform