OP here. Monodraw is cool, similarly I also really like Karo Graph and Square Sketch. But the thing those are all missing compared with a spreadsheet is the abi

OP here. Monodraw is cool, similarly I also really like Karo Graph and Square Sketch. But the thing those are all missing compared with a spreadsheet is the ability to quickly and easily adjust the working grid—even in the middle of your content—by adding and removing rows/columns.