Company Hamster Force Multimedia Ltd. created these great apps:
Mental Abacus, Sushi Puzzle, Mental Abacus Book 2, Thumbtack Painter, Maths Tree VS, Abacus Trainer, Mental Abacus Book 3, Abacus Trainer 2, Abacus Trainer 3, Animal Piano Mix, 腦力心算, Mind Maths, Mind Maths Trainer, 腦力心算題目練習, Thumbtack Painter Plus, 小學初階數學, Junior Maths, 腦珠算(加減法) 題目練習, 腦珠算(乘法) 題目練習, 腦珠算(除法) 題目練習, 腦力心算(國語版), HF Multiplication Trainer, 乘法題目練習, HF Division Trainer, 除法題目練習, 腦珠算全教程(初階), 腦珠算全教程(進階), 腦珠算全教程(高階), 勁腦, and others..
