There were also

- TeXview.app which at least inspired the award-winning TeXshop.app

- Altsys Virtuoso which became Macromedia Freehand (having been created as a successor to Freehand 3) --- these days one can use Cenon https://cenon.info/ (but it's nowhere near as nice/featureful)

- WriteNow.app --- while this was also a Mac application, the NeXT implementation was my favourite --- WN was probably the last major commercial app written in Assembly (~100,000 lines)

Still sad my NeXT Cube stopped booting up....