Company JaeKwang Yu created these great apps:
Number Paint - Draw the blocks, Number Painting, Number Link - Link number dots, Line Jigsaw Puzzle, Cublock - Cube + Block, Flood Gem - Link Gem Blocks, Block Block - 1010 Cube Fit, Block Dots, Wheel Dots, Match Color - Color Racing, Block Hexa - 1010 Hex Fit, Match Ball - Bounce ColorMatch, Jumping Bird - Avoid the spike, Number Puzzle - Slide Block, 2828! Block, Avert Line, Tapping Wheel, All Link, 1010 Block Fit, 1010 Hex Fit, Pop Block King - Crush Block, Four Colors - Crush Block, 6 x 6 Block Puzzle - 6060!, Cut Blocks, and others..
