Bear is a beautiful, flexible writing app for crafting notes and prose. It works on iPhone, iPad, and Mac, so you can write wherever inspiration strikes.
Left is a distraction-free, minimal note-taking tool for Windows, macOS, and Linux.
Pretext is a simple but feature-filled Markdown and plain text editor that works seamlessly with iOS. This means you can open files directly from your Files app, and any changes are saved right back, available to use on other devices and in other applications. You keep full control of your files.
FSNotes is modern text editor (like nvALT) on steroids.
FSNotes respect open formats: plain/text, markdown, rtf, and stores data in file system. You can view, edit, copy data in favourite external editor and see live result in FSNotes.
Markdown eidtor highlight code blocks on 170 languages, inline images available too.
Swift 4, open source.
Notesmartly is a free app which makes organizing your stuff a breeze. Notebooks, ability to draw using Scribbpads, Wideboards to collaborate in real time and more.