This so far is the most comprehensive vector draw app on android, way better that anything else, BUT there are 2 issues I found that can affect flow and usage: 1. If using it on a tablet with a keyboard/mouse attached, sometimes the CTRL + D, Z, mouse wheel doesn't do either duplicate, undo or zoom. 2. If in document properties someone changes the size to cm let's say 1500x200cm, later the document is shown to have 55600cm x 7560cm. Used on Xiaomi Pad 8 Pro.