Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Daily.co for Intercom - Free video calls & screen shares embedded in Intercom
Google Forms - Simple web forms from Google.
Pluot Communications - Big-screen video conferencing for startups
Zoho Survey - Capture feedback and turn it into actionable insight.
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.