Simple Poll - The easiest way to create polls in Slack
ConversionTracking.com - Track your conversions, see where your sales come from, and optimize your marketing campaigns.
Twitter Polls - Polls embedded in tweets
Attributer - Know what marketing channels are driving customers & revenue
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups
Wicked Reports - Wicked Reports is a marketing analytics company that provides subscription-based, actionable reports on marketing results.