Simple Poll - The easiest way to create polls in Slack
HelpStack - Open Source mobile help framework to support iOS and Android app users.
Twitter Polls - Polls embedded in tweets
Helpshift - Helpshift is an in-game customer support platform that enables mobile apps to improve customer experience, drive higher ratings and increase retention.
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups
KeyReply - Omnichannel keyboard for mobile teams to respond better and faster.