IPAD is an intelligent vector drawing package built using the multi-platform IPAD-Pro core, so it provides a very powerful and consistent interface across all supported platforms.
X-11 and MS Windows are not available.
It allows easy editing across files with multiple overlapping windows. The graphics objects drawn and edited by IPAD have built-in intelligence. They react to the mouse and each other so as to maximize user productivity and reduce tedious repetitive setup sequences.