Description -Build your data to draw lines -Five mode you can build: *X:Number Y:Number *X:date Y:Number *X:Number Y:date *X:Name Y:Number *X:Number Y:Name -Arranged in groups of 5 models -You can delete single projects or single data -You can draw multiple lines (up to 6 lines) -You can copy a project -You can modify the data has been constructed -Draw line mode(support multiple language) -Setting: *X&Y zoom in and zoom out ratio *Grids ratio setting *X&Y forward or backward to zoom *X&Y grids (on or off) *X&Y button mode (click or drag) itunes link: http://itunes.apple.com/app/id416732197?mt=8