Asklayer.io - Get real answers from your customers with Asklayers surveys, quizzes, polls and more. Works on any website with zero code and includes enterprise level features such auto-segmentation, user tagging, branching, NPS & CSAT calculation.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
Ask User - User surveys without stress
Invision - Prototyping and collaboration for design teams
Doorbell.io - Collect in-app user feedback. Available on websites, iOS, and Android.
Zeplin - Collaboration app for UI designers & frontend developers