Ask.fm - Curious? Just ask! Openly or anonymously.
Peing - Collect anonymous questions with SNS!
Tellonym - Tellonym is the most honest place on the internet.
Sayat - Sayat app is all about getting anonymous and honest feedback.
Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.
Stupid Chat - World's newest Anonymous Social Network