Impraise - Impraise is a web and mobile app for 360 degree feedback and peer coaching
Simple Poll - The easiest way to create polls in Slack
Peakon - Take the guesswork out of managing a great team. Peakon is the simple, scientific, and strategic way to maximise your employee engagement, retention, and culture.
GitHub Polls - Polls for GitHub issues and readme
SelfStir - SelfStir offers 360-degree feedback system.
Curious Polls - Answer a question once a day for the chance to win £100/$100