Hey Product Hunt! 👋 I'm Marcel, a published fiction author from Switzerland. I've written six urban fantasy thrillers, children's books, a young adult series, a cozy monster romance series in English, and a self-help workbook series — so I know firsthand how lonely and chaotic the writing process can be. Every AI writing tool I tried was built for marketers and copywriters. They could generate blog posts and ad copy, but they had no idea what a character arc is, couldn't track my worldbuilding across 30 chapters, and forgot everything the moment I closed the tab. So I built EPOS-AI — the writing studio I wished existed. It's not a text generator. It's a creative partner that reads your manuscript, understands your characters, remembers your world, and gives you honest feedback on structure, tension, and consistency. Three levels of AI editing — from grammar to deep narrative analysis. A sparring partner that actually pushes back on your ideas. Worldbuilding and character tools that keep everything connected. I built this entirely solo — backend, frontend, AI integration, the whole thing. Swiss-hosted, GDPR-compliant, available in German and English. Would love your feedback. What would you want from an AI writing tool as an author?

EPOS-AI

AI writing assistant built for fiction authors

AI writing assistant built for fiction authors