Acoola
ConceptGroup
ParentSquare
Amazon Kids+: Books, Videos…
Amazon Mobile LLC
Ollie's Bargain Outlet, Inc
PBS KIDS Video
PBS KIDS
ABCmouse – Kids Learning Games
Age of Learning, Inc.
Learn to Read - Duolingo ABC
Duolingo
Lingokids — 使用英语学习
Lingokids - English Learning For Kids
Epic: Kids' Books & Reading
Epic! Creations Inc
AirDroid Parental Control
SAND STUDIO