DoodleMaths: Primary Maths
Discovery Education Europe Limited
趣味數學遊戲:一、二、三和四年級的心算
Speedymind LLC
Math Games: Math for Kids
RV AppStudios
Math Land:心算、加法和減法遊戲
Didactoons
DoodleTables: Times Tables
DoodleSpell: Primary Spelling
Math Tests: learn mathematics
Eductify
趣味兒童數學&邏輯:加法、减法、九九乘法表、注意力(算數學)
Math Makers
Ululab