Overview
iA Writer is a closed-source writing app for Mac, Windows, iPhone, and iPad. It centers on plain-text Markdown, a focus mode that reduces visual distraction, syntax highlighting, live previews, style checks, and export to formats such as PDF, Word, and HTML. Its Authorship feature distinguishes text typed by the user from pasted or AI-generated material, helping writers inspect how a draft was assembled. The app also supports publishing workflows for selected blogging services. Desktop versions offer trials, while mobile versions use a one-time purchase model.