I built my own solution for this after using many different apps and not quite being satisfied with any of them. My ideal editor is markdown based with preview

I built my own solution for this after using many different apps and not quite being satisfied with any of them. My ideal editor is markdown based with preview as you type, available everywhere (so sublime wouldn't work), plain text storage that's easy to export, and simple linking between notes. It's at https://www.nominal.net https://www.nominal.net if you're interested.