TisaneAPI - Detect hate speech, cyberbullying, and more in 27 languages
Litnerd - The Pixar for education, reading program for K-5 schools
YouTube Kids - YouTube for the youngins on iOS and Android
Cotrio - The most beautiful way to move your brain and imagination
KidsWifi - Simply plug in to protect your kids online
WonderBox - Wikipedia for kids — Learn with friends and family