Trello is a web-based project management application with a beautiful card-based UI.
productboard is the all-in-one product management platform that helps teams understand what users need, prioritize what to build next, and earn-buy in for their roadmaps. It’s the solution of choice for product teams striving to build something that matters.
Canny is a single place for all customer feedback. It saves you time managing all the feedback while keeping your customers in the loop. Let your customers post and vote on feedback from within your website or mobile app. You'll get an organized list of feedback that you can use to inform your roadmap.