CuriousCat.me - Curious cat is a Q&A social network that allows you to connect with your followers and know new people.
Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.
Ask.fm - Curious? Just ask! Openly or anonymously.
Sayat - Sayat app is all about getting anonymous and honest feedback.
Tellonym - Tellonym is the most honest place on the internet.
Sarahah - Sarahah is a Social Networking Application for providing anonymous feedback launched in 2016 and available to use on iOS and Android platforms.