An error occurred while saving the commentTechInstructor Jo commented
To use the app as a full blackboard replacement in school we need rulers or a grid or an option to draw horizontal or vertical lines only. Control points for straight lines as available in OneNote would be more convenient the drawing a line cut her out with the lasso then paste her and have then the possibility to turn her or adjust the size but with no ability to snap on existing objects.
In my lessons in engineering classes I often have to show how to get some data out of diagrams and graphs with rulers. The only workaround for doing this is using the highlightertool with the straightline option. But the because of the poor contrast of its colors and the restrictions in adjusting its thickness it is only a bad replacement a bright thin and straight penline.
Please make GoodNotes an app suited for technical sketches for physics, engineering, mathematics or even tables and graphs in a x-y-grid.
Competitors like zoomnotes or geogebra are showing how that could be realized.