Company 忠 张 created these great apps:
Quick input by scan QR-code, Hand Shadow Guide, Hand Shadow Lite!, Map Measure by doodle, Planimeter Pro for map measure, Remove duplicate contacts -- Support backup and merge now!, Address Book Plus Plus, Quick tecord time by take screenshot, Crazy Minesweeper!, Doodle Fill - Draw a line to fill all circles, Fog of World Assistant - GPX Builder, iScreen-D delete screenshots to save space, Delete Bad Photos Quickly, Planimeter for map measure, Slime Blast, My Goals - Get things done, Photo Clean Master, Photo Clean Master Pro, Workflow Helper - Learn and Download Awesome Workflows Script, Picture Measure - Calculate area and length on photo, Duckweed - Let screenshot float on screen, Memory - forgetting curve, Sunroof - Arrange apps icon at home screen, Pixxxel - Measure pixel distance, 测距测面积 - 上帝视角丈量天下土地, Monotasking, Kaka Magnify - Quick measure, ArtMap - Make wallpaper by map, Redbox, Kuibu, and others..