Brazil Signal

An interactive guide that decodes Brazilian culture for foreigners, pairing an AI cultural decoder with a 120-question image quiz.

Read what others miss about Brazilian culture. Brazil Signal helps foreigners decode Brazilian gestures, expressions, and social norms. Decode Mode answers any cultural question with a structured explanation powered by the Claude API, what it looks like to a foreigner, what it really means, why it is that way, and what to do next, down to regional nuance. Challenge Mode is a 120-question image quiz across three tiers, Tourist, Adventurer, and Almost Local. React 19 with Vite, serverless functions on Vercel, Google sign-in with Firestore, and LGPD-aware privacy with first-party anonymous counters instead of third-party trackers. A product by Signal Studio.

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