Based on our record, Metro Retro should be more popular than Firepoker. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've had good luck using this website: https://firepoker.io/#/. Source: about 3 years ago
I started using Metroretro a few months ago and it's really nice, except for the ability to export retro items I think it covers everything you listed. Also it's free and it comes with some useful templates. Source: about 3 years ago
To improve the developer experience, I needed to understand the real problems the engineers were facing, so I scheduled a brainstorming meeting. In this meeting, I explained my project and shared a Metro Retro board to write down all issues our application had at that time, what was the bad DX we had, and doubts related to this application (e.g. How do we handle data fetching?; how do we handle error handling?;... - Source: dev.to / about 3 years ago
Planning Poker - Open source implementation of planning poker game (collaborative online estimation/voting tool).
Reetro.io - Reetro is a versatile retrospective tool for agile teams, collaborate with your team and get better in what you do with a simple, intuitive and beautiful tool
PlanITpoker - PlanITpoker is a cool on-line planning poker app that helps Agile project teams estimate projects easily.
Retrium - Sprint retrospectives made easy and effective for distributed scrum teams.
Scrumpoker Online - Scrumpoker is an online and free-to-use poker planning tool where teams can do estimation about their projects.
Parabol - Agile Meeting Co-Pilot