Hypothesis

An open-source social annotation tool widely used in education that allows users to highlight, comment on, and annotate web pages, PDFs, and other digital content collaboratively.

UserReport

A freemium set of user engagement tools that help you conduct online surveys and understand user satisfaction.

Refiner

A specialized microsurvey tool with advanced customization options designed specifically for SaaS and digital products.

Featurebase

A support and product management suite that combines AI-assisted customer support, user feedback collection, public roadmaps, and product update announcements in a single platform.

Frill

A customer feedback, public roadmap, and announcements platform that helps teams collect suggestions, track votes, publish changelogs, and communicate product plans to users.

Upvoty

A user feedback management platform that focuses on proactive feedback through feedback boards.

Mopinion

A user feedback software that collects and analyses user feedback from websites, mobile apps and email campaigns in real-time.

Atarim

A visual collaboration and annotation feedback tool designed for website projects that lets users leave contextual comments directly on live pages.

LimeSurvey

An open-source online survey software written in PHP that enables users to create, publish, and analyze web-based surveys, questionnaires, and polls on their own servers or via cloud editions.

Optimal Workshop

A UX platform that enables you to improve your websites, apps and products using a range of user research methods.

FormRun

A Japanese online form builder.

Crema

A Korean customer review management system.