Hey Product Hunt 👋 I'm Taj, solo founder of Contra. Why I built this: I noticed ChatGPT, Claude and every other AI assistant is trained to agree with you. Helpful, sure — but terrible for critical thinking. There's no tool that pushes you to actually defend your ideas. So I built one. Contra lets you pick any topic, takes the opposing side, and argues back hard. You have 6 turns to convince it. After the debate, you get a score /100 broken down into Logic, Rhetoric, Evidence and Originality — plus coaching on the arguments you missed. What's inside: 4 difficulty levels (Easy → Brutal) Custom debate topics (propose your own) 1v1 challenges with friends on the same topic Global + friends leaderboards Fully bilingual (FR/EN) + dark mode Built with React Native (Expo SDK 54) + Claude Sonnet streaming on Django/Postgres. What I'd love feedback on: Is the scoring system intuitive? Does "Brutal" mode feel genuinely hard or just frustrating? Any debate topics you'd want preloaded? Happy to answer anything!

Contra

The AI that argues back.

The AI that argues back.