Turtle - New kind of anonymous messaging app
Quiply - Share your workplace experiences and have your voice heard
Kruzo for iOS - Send an anonymous message and make someone's day brighter
Offgarden - Anonymous message board for co-workers
throwaway - throwaway is an in-browser messaging app.
RateMe - Rate your friends, just like in Black Mirror ⭐️⭐️⭐️⭐️⭐️