Twitter Polls - Polls embedded in tweets
Sprig - Delivering locally-sourced, seasonal, sustainable lunches and dinners.
Curious Polls - Answer a question once a day for the chance to win £100/$100
UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
Simple Poll - The easiest way to create polls in Slack
User Interviews - User Interviews is a tool to recruit participants for product tests and market research.