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.
Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.
Google Forms - Simple web forms from Google.
Sayat - Sayat app is all about getting anonymous and honest feedback.
Zoho Survey - Capture feedback and turn it into actionable insight.
Sarahah - Sarahah is a Social Networking Application for providing anonymous feedback launched in 2016 and available to use on iOS and Android platforms.