Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.
Universal Dapp Store - Discover decentralized apps on ETH, Blockstack, IPFS & more
Sayat - Sayat app is all about getting anonymous and honest feedback.
DappRadar - A list of the best decentralised Ethereum applications
Sarahah - Sarahah is a Social Networking Application for providing anonymous feedback launched in 2016 and available to use on iOS and Android platforms.
AppScope - Appscope, one of the leading directories for Progressive Web Apps (PWAs).