Simple Poll - The easiest way to create polls in Slack
productboard - Beautiful and powerful product management.
Twitter Polls - Polls embedded in tweets
Aha - Aha! is the new way to create visual product roadmaps. Web-based product management tools and roadmapping software for agile product managers.
Surveys in Slack by Polly - The world's first fully immersive Slack-based survey product
ProdPad - ProdPad helps your team gather ideas, surface the best ones and turn them into product specs, and then put it all on a product roadmap.