[2][3] iA Writer is designed to focus solely on writing, offering a minimalist interface with features like distraction-free[4] mode and syntax highlighting.

[5] It uses "writing typography," a concept emphasizing legibility with custom monospaced and duospaced fonts[6] derived from IBM Plex Mono.

Advanced integrations include Micropub publishing, allowing direct uploads to personal blogs or platforms like micro.blog.

[8] In 2022, iA Writer added features including cross-document linking, YAML metadata, and shortcuts to improve navigation within the application.

In 2012, The Verge described the iPhone version as “one of the best tools for mobile writing.”[10] It has also been recognized in reviews by MacWorld and Business Insider for its innovative design.