I mostly use it to draw small diagrams for code comments if it makes things clearer but it's one of these small little macOS app gems.

A very small niche and well done as a beautiful native Mac app.

I love monodraw, but i don't know if it counts as "modern looking" Yes, the rendered versions of the output look reasonably good, but there are still some rough edges, like trying to create a "diamond" shape to put text in (typical decision point in flow chart) ends up with a HUGE diamond.

also, i see it as primarily useful for generating ASCII diagrams for inserting into source code or docs. If you don't care about that tools like OmniGraffle do a much better job.

And an absolute steal (for what is it) at the standard sale price.