- There is no size limit of opening files. The program supports working with very large drawings through the effective use of memory. - Opening drawings from the memory card of the device. - Does not require Internet connection and registration for working with drawings. - Ability to work with drawings located directly in Google Drive. - Adding comments and replies (if the drawing was stored in Google Drive). - The ability to view both 2D and 3D drawings. - Support for 3D views (including users