Quillium – Git for Writers

A version control system designed specifically for writers and essayists to manage drafts, revisions, and different versions of their work. Solves the problem of accidental work on old drafts and makes it easy to compare and track changes to writing projects.

The rise of AI writing tools has paradoxically made version control *more* relevant for writers, not less — people are iterating faster and producing more draft variants than ever. The closest competitor is Scrivener, which has built-in snapshot and version features that most of its loyal user base already relies on, making acquisition harder than it looks. A $500–2k/mo revenue ceiling is realistic but limiting, since writers are notoriously price-sensitive and the addressable market willing to pay monthly for a niche writing utility is thin. The core risk is that the problem is already "solved enough" — between Scrivener snapshots, Google Docs version history, and Dropbox Paper, most writers have cobbled together a workflow they tolerate, and the switching cost of a new tool outweighs the pain of the problem it fixes.