Read this conspiracy theorists – Morpholio Trace - Sketch CAD Review

The app is designed mostly for architects. Features such as scaled line weights with zooming ability (while drawing), straight-edge with scaled units, templates for planting, trees, people, furniture, layers, title blocks, etc. are what allow architects to sketch ideas that become useful and communicative to clients. Engineering professionals, draftsmen, landscape architects, planners, artists, community development groups, developers, and a slew of others in the planning/building industry can find this app helpful. That said, as a graphic artist, you may find this app lacking. As a response to the pay for everything reviews: the developer has changed the approach and decided to create a $.99 monthly subscription price for the Pro version. Not cheap when the following shortcomings could be better: handling of files in a general gallery isn't robust enough, exporting a flat file with the layering stack effects make smaller drawings with many layers difficult to read and ruins the ability to present designs (an option to flatten the layers should be included and allow full transparency), undo command commands crash the app. Hint and workflow drawback: for a layer to be high resolution-zoom into drawing and create a layer. Drawback? Only small area is high res and you must create another small windowed layer to continue higher rez drawing. Anything drawn beyond the zoomed in layer creation is low rez.
Review by lovinmymac on Morpholio Trace - Sketch CAD.