Number To Whatsapp - A utility tool which lets your start a Whatsapp conversation without saving the contact of the said person first.
Simple Poll - The easiest way to create polls in Slack
WhatsApp Web - A WhatsApp client for web
Twitter Polls - Polls embedded in tweets
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups