Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.
Viable Fit - Measure and improve your product market fit
Stupid Chat - World's newest Anonymous Social Network
Product Fit - Measure product/market fit in app with your users.
Sarahah - Sarahah is a Social Networking Application for providing anonymous feedback launched in 2016 and available to use on iOS and Android platforms.
Product/Market Fit Survey - Check how close your product is to Product/Market fit